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1

Open Science Grid (OSG) Ticket Synchronization: Keeping Your Home Field Advantage In A Distributed Environment  

NASA Astrophysics Data System (ADS)

Large distributed computing collaborations, such as the Worldwide LHC Computing Grid (WLCG), face many issues when it comes to providing a working grid environment for their users. One of these is exchanging tickets between various ticketing systems in use by grid collaborations. Ticket systems such as Footprints, RT, Remedy, and ServiceNow all have different schema that must be addressed in order to provide a reliable exchange of information between support entities and users in different grid environments. To combat this problem, OSG Operations has created a ticket synchronization interface called GOC-TX that relies on web services instead of error-prone email parsing methods of the past. Synchronizing tickets between different ticketing systems allows any user or support entity to work on a ticket in their home environment, thus providing a familiar and comfortable place to provide updates without having to learn another ticketing system. The interface is built in a way that it is generic enough that it can be customized for nearly any ticketing system with a web-service interface with only minor changes. This allows us to be flexible and rapidly bring new ticket synchronization online. Synchronization can be triggered by different methods including mail, web services interface, and active messaging. GOC-TX currently interfaces with Global Grid User Support (GGUS) for WLCG, Remedy at Brookhaven National Lab (BNL), and Request Tracker (RT) at the Virtual Data Toolkit (VDT). Work is progressing on the Fermi National Accelerator Laboratory (FNAL) ServiceNow synchronization. This paper will explain the problems faced by OSG and how they led OSG to create and implement this ticket synchronization system along with the technical details that allow synchronization to be preformed at a production level.

Gross, Kyle; Hayashi, Soichi; Teige, Scott; Quick, Robert

2012-12-01

2

Definition and implementation of a SAML-XACML profile for authorization interoperability across grid middleware in OSG and EGEE  

SciTech Connect

In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-sciencE (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: first, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and second, implementing, testing, and deploying, on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

Garzoglio, Gabriele; Alderman, Ian; Altunay, Mine; Anathakrishnan, Rachana; Bester, Joe; Chadwick, Keith; Ciaschini, Vincenzo; Demchenko, Yuri; Ferraro, Andrea; Forti, Alberto; Groep, David; /Fermilab /NIKHEF, Amsterdam /Brookhaven /Amsterdam U. /SWITCH, Zurich /Bergen U. /INFN, CNAF /Argonne /Wisconsin U., Madison

2009-04-01

3

Definition and implementation of a SAML-XACML profile for authorization interoperability across Grid middleware implementations in OSG and EGEE.  

SciTech Connect

In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-science (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: firstly, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and secondly implementing, testing, and deploying on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

Alderman, I.; Altunay, M.; Ananthakrishnan, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Garzoglio, G.; Groep, D.; Hesselroth, T.; Hover, J.; Koeroo, O.; La Joie, C.; Levshina, T.; Miller, Z.; Packard, J.; Sagehaug, H.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Siebenlist, F.; Venturi, V.; Weigand, J.; Mathematics and Computer Science; FNAL; NIKHEF; BNL; Univ. of Amsterdam; SWITCH; BCCS; INFN CNAF; Univ. of Wisconsin at Madison

2009-09-01

4

Definition and Implementation of a SAML-XAMCL Profile for Authorization Interoperability Across Grid Middleware in OSG and EGEE  

SciTech Connect

In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-science (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: firstly, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and secondly implementing, testing, and deploying on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

Hover, J.; Garzoglio, G; Alderman, I.; Altunay, M.; Ananthakrishman, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Groep, D.; Hesselroth, T.; Hover, J.; Koeroo, O.; LaJoie, C.; Levshina, T.; Miller, Z.; Packard, J.; Sagehaug, H.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Siebenlist, F.; Venturi, V.; Weigand, J.

2009-04-23

5

A dynamic system for ATLAS software installation on OSG grid sites  

NASA Astrophysics Data System (ADS)

A dynamic and reliable system for installing the ATLAS software releases on Grid sites is crucial to guarantee the timely and smooth start of ATLAS production and reduce its failure rate. In this paper, we discuss the issues encountered in the previous software installation system, and introduce the new approach, which is built upon the new development in the areas of the ATLAS workload management system (PanDA), and software package management system (pacman). It is also designed to integrate with the EGEE ATLAS software installation framework. In the new system, ATLAS software releases are packaged as pacball, a uniquely identifiable and reproducible self-installing data file. The distribution of pacballs to remote sites is managed by ATLAS data management system (DQ2) and PanDA server. The installation on remote sites is automatically triggered by the PanDA pilot jobs. The installation job payload connects to a central ATLAS software installation portal, making the information of installation status easily accessible across OSG and EGEE Grids. The issues encountered in running the new system in production, and our future plan for improvement, will also be discussed.

Zhao, X.; Maeno, T.; Wenaus, T.; Leuhring, F.; Youssef, S.; Brunelle, J.; De Salvo, A.; Thompson, A. S.

2010-04-01

6

Toward SVOPME, a Scalable Virtual Organization Privileges Management Environment  

NASA Astrophysics Data System (ADS)

Grids enable uniform access to resources by implementing standard interfaces to resource gateways. In the Open Science Grid (OSG), privileges are granted on the basis of the user's membership to a Virtual Organization (VO). However, user privilege definitions and enforcements are administered separately by VOs and Grid sites. Such partitioning can potentially introduce inconsistent user privileges throughout the Grid and break the Grid paradigm of uniform access to resources. There is a need for an automated privilege management mechanism for a VO to codify privilege policies granted to its users, to propagate the policies to grid sites, to identity and suggest remedies for non-supported VO privileges at individual sites. The Scalable Virtual Organization Privileges Management Environment (SVOPME) addresses the challenge under the context of the Open Science Grid (OSG). The SVOPME provides tools for VOs to define and publish desired privileges. At a site, SVOPME tools help analyze access policies defined for VO users and verify policy consistency between VOs and sites, and suggest site configurations changes. This paper presents the designs and features of SVOPME tools and the lessons learned in applying SVOPME tools for OSG VOs and sites. Furthermore, we will outline future improvements to SVOPME tools to adapt to a range of different site configurations and new privilege policies.

Wang, Nanbor; Garzoglio, Gabriele; Ananthan, Balamurali; Timm, Steven

2011-12-01

7

SVOPME: A scalable virtual organization privileges management environment  

SciTech Connect

Grids enable uniform access to resources by implementing standard interfaces to resource gateways. In the Open Science Grid (OSG), privileges are granted on the basis of the user's membership to a Virtual Organization (VO). However, Grid sites are solely responsible to determine and control access privileges to resources using users identity and personal attributes, which are available through Grid credentials. While this guarantees full control on access rights to the sites, it makes VO privileges heterogeneous throughout the Grid and hardly fits with the Grid paradigm of uniform access to resources. To address these challenges, we are developing the Scalable Virtual Organization Privileges Management Environment (SVOPME), which provides tools for VOs to define and publish desired privileges and assists sites to provide the appropriate access policies. Moreover, SVOPME provides tools for Grid sites to analyze site access policies for various resources, verify compliance with preferred VO policies, and generate directives for site administrators on how the local access policies can be amended to achieve such compliance without taking control of local configurations away from site administrators. This paper discusses what access policies are of interest to the OSG community and how SVOPME implements privilege management for OSG.

Garzoglio, Gabriele; /Fermilab; Wang, Nanbor; /Tech-X, Boulder; Sfiligoi, Igor; Levshina, Tanya; /Fermilab; Anathan, Balamurali; /Tech-X, Boulder

2009-05-01

8

XACML profile and implementation for authorization interoperability between OSG and EGEE  

NASA Astrophysics Data System (ADS)

The Open Science Grid (OSG) and the Enabling Grids for E-sciencE (EGEE) have a common security model, based on Public Key Infrastructure. Grid resources grant access to users because of their membership in a Virtual Organization (VO), rather than on personal identity. Users push VO membership information to resources in the form of identity attributes, thus declaring that resources will be consumed on behalf of a specific group inside the organizational structure of the VO. Resources contact an access policies repository, centralized at each site, to grant the appropriate privileges for that VO group. Before the work in this paper, despite the commonality of the model, OSG and EGEE used different protocols for the communication between resources and the policy repositories. Hence, middleware developed for one Grid could not naturally be deployed on the other Grid, since the authorization module of the middleware would have to be enhanced to support the other Grid's communication protocol. In addition, maintenance and support for different authorization call-out protocols represents a duplication of effort for our relatively small community. To address these issues, OSG and EGEE initiated a joint project on authorization interoperability. The project defined a common communication protocol and attribute identity profile for authorization call-out and provided implementation and integration with major Grid middleware. The activity had resonance with middleware development communities, such as the Globus Toolkit and Condor, who decided to join the collaboration and contribute requirements and software. In this paper, we discuss the main elements of the profile, its implementation, and deployment in EGEE and OSG. We focus in particular on the operations of the authorization infrastructures of both Grids.

Garzoglio, G.; Alderman, I.; Altunay, M.; Ananthakrishnan, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Groep, D.; Hesselroth, T. D.; Hover, J.; Koeroo, O.; La Joie, C.; Levshina, T.; Miller, Z.; Packard, J.; Sagehaug, H.; Sfiligoi, I.; Sharma, N.; Timm, S.; Siebenlist, F.; Venturi, V.; Weigand, J.

2010-04-01

9

XACML profile and implementation for authorization interoperability between OSG and EGEE  

SciTech Connect

The Open Science Grid (OSG) and the Enabling Grids for E-sciencE (EGEE) have a common security model, based on Public Key Infrastructure. Grid resources grant access to users because of their membership in a Virtual Organization (VO), rather than on personal identity. Users push VO membership information to resources in the form of identity attributes, thus declaring that resources will be consumed on behalf of a specific group inside the organizational structure of the VO. Resources contact an access policies repository, centralized at each site, to grant the appropriate privileges for that VO group. Before the work in this paper, despite the commonality of the model, OSG and EGEE used different protocols for the communication between resources and the policy repositories. Hence, middleware developed for one Grid could not naturally be deployed on the other Grid, since the authorization module of the middleware would have to be enhanced to support the other Grid's communication protocol. In addition, maintenance and support for different authorization call-out protocols represents a duplication of effort for our relatively small community. To address these issues, OSG and EGEE initiated a joint project on authorization interoperability. The project defined a common communication protocol and attribute identity profile for authorization call-out and provided implementation and integration with major Grid middleware. The activity had resonance with middleware development communities, such as the Globus Toolkit and Condor, who decided to join the collaboration and contribute requirements and software. In this paper, we discuss the main elements of the profile, its implementation, and deployment in EGEE and OSG. We focus in particular on the operations of the authorization infrastructures of both Grids.

Garzoglio, G.; Alderman, I.; Altunay, M.; Ananthakrishnan, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Groep, D.; /Fermilab /Wisconsin U., Madison /Argonne /INFN, CNAF /Amsterdam U. /NIKHEF, Amsterdam /Brookhaven /SWITCH, Zurich /Bergen Coll. Higher Educ.

2009-05-01

10

Die kombinierte Kompressionsmarknagelarthrodese von OSG und USG  

Microsoft Academic Search

Zusammenfassung Die operative Versteifung von oberem (OSG) und unterem Sprunggelenk (USG) ist bei fortgeschrittenen degenerativen Veränderungen beider Gelenke unterschiedlicher Genese auch bei zunehmender Verbreitung des Oberflächenersatzes am OSG die Therapie der Wahl. Bisher sind verschiedene Techniken zur tibiotalokalkanealen Arthrodese beschrieben worden, wobei sich die Kompressionsarthrodese mit internen Implantaten durchgesetzt hat. 20 Patienten, bei denen die kombinierte Arthrodese von OSG und

M. Goebel; T. Mückley; L. Gerdesmeyer; M. Militz; V. Bühren

2003-01-01

11

College of Dentistry OSG Oral and Maxillofacial Surgery  

E-print Network

College of Dentistry OSG Oral and Maxillofacial Surgery KEY: # = new course * = course changed IN SURGERY. (1) A seminar course for dental graduate students in areas other than surgery, emphasizing or post-doctoral programs of College of Dentistry; D.D.S. or D.M.D. degree. OSG 820 ORAL SURGERY I. (1

MacAdam, Keith

12

FermiGrid  

SciTech Connect

As one of the founding members of the Open Science Grid Consortium (OSG), Fermilab enables coherent access to its production resources through the Grid infrastructure system called FermiGrid. This system successfully provides for centrally managed grid services, opportunistic resource access, development of OSG Interfaces for Fermilab, and an interface to the Fermilab dCache system. FermiGrid supports virtual organizations (VOs) including high energy physics experiments (USCMS, MINOS, D0, CDF, ILC), astrophysics experiments (SDSS, Auger, DES), biology experiments (GADU, Nanohub) and educational activities.

Yocum, D.R.; Berman, E.; Canal, P.; Chadwick, K.; Hesselroth, T.; Garzoglio, G.; Levshina, T.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Timm, S.; /Fermilab

2007-05-01

13

The benefits and challenges of sharing glidein factory operations across nine time zones between OSG and CMS  

NASA Astrophysics Data System (ADS)

OSG has been operating for a few years at UCSD a glideinWMS factory for several scientific communities, including CMS analysis, HCC and GLOW. This setup worked fine, but it had become a single point of failure. OSG thus recently added another instance at Indiana University, serving the same user communities. Similarly, CMS has been operating a glidein factory dedicated to reprocessing activities at Fermilab, with similar results. Recently, CMS decided to host another glidein factory at CERN, to increase the availability of the system, both for analysis, MC and reprocessing jobs. Given the large overlap between this new factory and the three factories in the US, and given that CMS represents a significant fraction of glideins going through the OSG factories, CMS and OSG formed a common operations team that operates all of the above factories. The reasoning behind this arrangement is that most operational issues stem from Grid-related problems, and are very similar for all the factory instances. Solving a problem in one instance thus very often solves the problem for all of them. This paper presents the operational experience of how we address both the social and technical issues of running multiple instances of a glideinWMS factory with operations staff spanning multiple time zones on two continents.

Sfiligoi, I.; Dost, J. M.; Zvada, M.; Butenas, I.; Holzman, B.; Wuerthwein, F.; Kreuzer, P.; Teige, S. W.; Quick, R.; Hernández, J. M.; Flix, J.

2012-12-01

14

Family Privilege  

ERIC Educational Resources Information Center

Family privilege is defined as "strengths and supports gained through primary caring relationships." A generation ago, the typical family included two parents and a bevy of kids living under one roof. Now, every variation of blended caregiving qualifies as family. But over the long arc of human history, a real family was a…

Seita, John R.

2014-01-01

15

Condor Week 2011 SaaS and the OSG glidein factory 1 Condor Week 2011  

E-print Network

Condor Week 2011 SaaS and the OSG glidein factory 1 Condor Week 2011 Why SaaS can be good The tale of the OSG glidein factory by Igor Sfiligoi and Jeff Dost University of California San Diego #12;Condor Week And we will do it by providing some real life examples, too! #12;Condor Week 2011 SaaS and the OSG

Liblit, Ben

16

The Open Science Grid status and architecture  

SciTech Connect

The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing and storage resources. The OSG project[1] is funded by the National Science Foundation and the Department of Energy Scientific Discovery through Advanced Computing program. The OSG project provides specific activities for the operation and evolution of the common infrastructure. The US ATLAS and US CMS collaborations contribute to and depend on OSG as the US infrastructure contributing to the World Wide LHC Computing Grid on which the LHC experiments distribute and analyze their data. Other stakeholders include the STAR RHIC experiment, the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Dark Energy Survey (DES) and several Fermilab Tevatron experiments- CDF, D0, MiniBoone etc. The OSG implementation architecture brings a pragmatic approach to enabling vertically integrated community specific distributed systems over a common horizontal set of shared resources and services. More information can be found at the OSG web site: www.opensciencegrid.org.

Pordes, Ruth; Petravick, Don; /Fermilab; Kramer, Bill; Olsen, James D.; /LBL, Berkeley; Livny, Miron; Roy, Gordon A.; /Wisconsin U., Madison; Avery, Paul Ralph; /Florida U.; Blackburn, Kent; /Caltech; Wenaus, Torre J.; /Brookhaven; Wuerthwein, Frank K.; /UC, San Diego; Foster, Ian; /Chicago U. /Indiana U.

2007-09-01

17

DZero data-intensive computing on the Open Science Grid  

SciTech Connect

High energy physics experiments periodically reprocess data, in order to take advantage of improved understanding of the detector and the data processing code. Between February and May 2007, the DZero experiment has reprocessed a substantial fraction of its dataset. This consists of half a billion events, corresponding to about 100 TB of data, organized in 300,000 files. The activity utilized resources from sites around the world, including a dozen sites participating to the Open Science Grid consortium (OSG). About 1,500 jobs were run every day across the OSG, consuming and producing hundreds of Gigabytes of data. Access to OSG computing and storage resources was coordinated by the SAM-Grid system. This system organized job access to a complex topology of data queues and job scheduling to clusters, using a SAM-Grid to OSG job forwarding infrastructure. For the first time in the lifetime of the experiment, a data intensive production activity was managed on a general purpose grid, such as OSG. This paper describes the implications of using OSG, where all resources are granted following an opportunistic model, the challenges of operating a data intensive activity over such large computing infrastructure, and the lessons learned throughout the project.

Abbott, B.; /Oklahoma U.; Baranovski, A.; Diesburg, M.; Garzoglio, G.; /Fermilab; Kurca, T.; /Lyon, IPN; Mhashilkar, P.; /Fermilab

2007-09-01

18

Reclaiming Family Privilege  

ERIC Educational Resources Information Center

The pull for family is strong, almost primeval, most likely it is evolutionary, and for those lacking the benefit of family or Family Privilege, the loss of family is painful and profoundly sad. Young people who struggle to cope without stable family connections are profoundly aware of their lack of "Family Privilege." In this article, the author…

Seita, John

2012-01-01

19

Environmental Effects on Subcritical Delamination of Dielectric and Metal Films from Organosilicate Glass (OSG) Thin Films  

E-print Network

Glass (OSG) Thin Films Y. Lin, J.J. Vlassak, T.Y. Tsui1 , and A.J. McKerrow1 DEAS, Harvard University, modulus, etc.) of OSG films are inferior to those of silica. During the many wet-processing steps involved of the specimen configuration in the four-point bend test. As the specimen is loaded in pure bending, a crack

20

Ocular immune privilege.  

PubMed

It has been over 60 years since the phrase immune privilege was used by Sir Peter Medawar to describe the lack of an immune response against allografts placed into the ocular microenvironment. Since then, we have come to understand that the mechanisms of ocular immune privilege include unique anatomical features of a blood barrier and a lack of direct lymphatic drainage. Also, we know that the ocular microenvironment is rich with immunosuppressive molecules that influence the activity of immune cells. Moreover, the placement of foreign antigen into the ocular microenvironment can induce a systemic form of tolerance to the foreign antigen called anterior chamber-associated immune deviation (ACAID). Many soluble immunomodulators are found in aqueous humour, and are a mixture of growth factors, cytokines, neuropeptides, and soluble receptors. This is a continuously growing list. The mechanisms of ocular immune privilege induce apoptosis, promote the production of anti-inflammatory cytokines, and mediate the activation of antigen-specific regulatory immunity. These mechanisms of immune privilege also attempt to impose themselves upon immunity within the uveitic eye. The adaptation of several anatomical and biochemical mechanisms to establish an immune privileged microenvironment within the eye makes the eye immunologically unique. It is a tissue site where we may learn how immunity is regulated in inflammation and at rest. Success in translating the lessons of ocular immune privilege to other tissues has the potential to drastically change the therapy and clinical outcomes of autoimmune diseases and allograft survival. PMID:19136922

Taylor, A W

2009-10-01

21

The open science grid  

SciTech Connect

The U.S. LHC Tier-1 and Tier-2 laboratories and universities are developing production Grids to support LHC applications running across a worldwide Grid computing system. Together with partners in computer science, physics grid projects and active experiments, we will build a common national production grid infrastructure which is open in its architecture, implementation and use. The Open Science Grid (OSG) model builds upon the successful approach of last year's joint Grid2003 project. The Grid3 shared infrastructure has for over eight months provided significant computational resources and throughput to a range of applications, including ATLAS and CMS data challenges, SDSS, LIGO, and biology analyses, and computer science demonstrators and experiments. To move towards LHC-scale data management, access and analysis capabilities, we must increase the scale, services, and sustainability of the current infrastructure by an order of magnitude or more. Thus, we must achieve a significant upgrade in its functionalities and technologies. The initial OSG partners will build upon a fully usable, sustainable and robust grid. Initial partners include the US LHC collaborations, DOE & NSF Laboratories and Universities & Trillium Grid projects. The approach is to federate with other application communities in the U.S. to build a shared infrastructure open to other sciences and capable of being modified and improved to respond to needs of other applications, including CDF, D0, BaBar, and RHIC experiments. We describe the application-driven, engineered services of the OSG, short term plans and status, and the roadmap for a consortium, its partnerships and national focus.

Pordes, R.; /Fermilab

2004-12-01

22

Subcritical Delamination of Dielectric and Metal Films from Low-k Organosilicate Glass (OSG) Thin Films in Buffered pH Solutions  

E-print Network

(OSG) films in pH buffer solutions was studied in this work. Crack path and subcritical fracture of the crack velocity curves for both systems are independent of pH as predicted by the model. Near transport results on subcritical cracking of OSG/TaN and OSG/SiNx films in buffered pH solutions. These data were

23

Guanine Nucleotide Exchange Factor OSG-1 Confers Functional Aging via Dysregulated Rho Signaling in Caenorhabditis elegans Neurons.  

PubMed

Rho signaling regulates a variety of biological processes, but whether it is implicated in aging remains an open question. Here we show that a guanine nucleotide exchange factor of the Dbl family, OSG-1, confers functional aging by dysregulating Rho GTPases activities in C. elegans. Thus, gene reporter analysis revealed widespread OSG-1 expression in muscle and neurons. Loss of OSG-1 gene function was not associated with developmental defects. In contrast, suppression of OSG-1 lessened loss of function (chemotaxis) in ASE sensory neurons subjected to conditions of oxidative stress generated during natural aging, by oxidative challenges, or by genetic mutations. RNAi analysis showed that OSG-1 was specific toward activation of RHO-1 GTPase signaling. RNAi further implicated actin-binding proteins ARX-3 and ARX-5, thus the actin cytoskeleton, as one of the targets of OSG-1/RHO-1 signaling. Taken together these data suggest that OSG-1 is recruited under conditions of oxidative stress, a hallmark of aging, and contributes to promote loss of neuronal function by affecting the actin cytoskeleton via altered RHO-1 activity. PMID:25527286

Duan, Zhibing; Sesti, Federico

2015-02-01

24

ReSS: Resource Selection Service for National and Campus Grid Infrastructure  

SciTech Connect

The Open Science Grid (OSG) offers access to around hundred Compute elements (CE) and storage elements (SE) via standard Grid interfaces. The Resource Selection Service (ReSS) is a push-based workload management system that is integrated with the OSG information systems and resources. ReSS integrates standard Grid tools such as Condor, as a brokering service and the gLite CEMon, for gathering and publishing resource information in GLUE Schema format. ReSS is used in OSG by Virtual Organizations (VO) such as Dark Energy Survey (DES), DZero and Engagement VO. ReSS is also used as a Resource Selection Service for Campus Grids, such as FermiGrid. VOs use ReSS to automate the resource selection in their workload management system to run jobs over the grid. In the past year, the system has been enhanced to enable publication and selection of storage resources and of any special software or software libraries (like MPI libraries) installed at computing resources. In this paper, we discuss the Resource Selection Service, its typical usage on the two scales of a National Cyber Infrastructure Grid, such as OSG, and of a campus Grid, such as FermiGrid.

Mhashilkar, Parag; Garzoglio, Gabriele; Levshina, Tanya; Timm, Steve; /Fermilab

2009-05-01

25

ReSS: Resource Selection Service for National and Campus Grid Infrastructure  

NASA Astrophysics Data System (ADS)

The Open Science Grid (OSG) offers access to around hundred Compute elements (CE) and storage elements (SE) via standard Grid interfaces. The Resource Selection Service (ReSS) is a push-based workload management system that is integrated with the OSG information systems and resources. ReSS integrates standard Grid tools such as Condor, as a brokering service and the gLite CEMon, for gathering and publishing resource information in GLUE Schema format. ReSS is used in OSG by Virtual Organizations (VO) such as Dark Energy Survey (DES), DZero and Engagement VO. ReSS is also used as a Resource Selection Service for Campus Grids, such as FermiGrid. VOs use ReSS to automate the resource selection in their workload management system to run jobs over the grid. In the past year, the system has been enhanced to enable publication and selection of storage resources and of any special software or software libraries (like MPI libraries) installed at computing resources. In this paper, we discuss the Resource Selection Service, its typical usage on the two scales of a National Cyber Infrastructure Grid, such as OSG, and of a campus Grid, such as FermiGrid.

Mhashilkar, Parag; Garzoglio, Gabriele; Levshina, Tanya; Timm, Steve

2010-04-01

26

The Hidden Price of Privilege  

ERIC Educational Resources Information Center

Surprising new studies show that privileged adolescents are more likely than any other socioeconomic group to suffer from depression, anxiety disorders, and substance abuse. This article presents an interview with Madeline Levine, a Marin County, California, clinical psychologist of 25 years, and author of the new book "The Price of Privilege"…

Adams, Caralee

2006-01-01

27

Public storage for the Open Science Grid  

NASA Astrophysics Data System (ADS)

The Open Science Grid infrastructure doesn't provide efficient means to manage public storage offered by participating sites. A Virtual Organization that relies on opportunistic storage has difficulties finding appropriate storage, verifying its availability, and monitoring its utilization. The involvement of the production manager, site administrators and VO support personnel is required to allocate or rescind storage space. One of the main requirements for Public Storage implementation is that it should use SRM or GridFTP protocols to access the Storage Elements provided by the OSG Sites and not put any additional burden on sites. By policy, no new services related to Public Storage can be installed and run on OSG sites. Opportunistic users also have difficulties in accessing the OSG Storage Elements during the execution of jobs. A typical users' data management workflow includes pre-staging common data on sites before a job's execution, then storing for a subsequent download to a local institution the output data produced by a job on a worker node. When the amount of data is significant, the only means to temporarily store the data is to upload it to one of the Storage Elements. In order to do that, a user's job should be aware of the storage location, availability, and free space. After a successful data upload, users must somehow keep track of the data's location for future access. In this presentation we propose solutions for storage management and data handling issues in the OSG. We are investigating the feasibility of using the integrated Rule-Oriented Data System developed at RENCI as a front-end service to the OSG SEs. The current architecture, state of deployment and performance test results will be discussed. We will also provide examples of current usage of the system by beta-users.

Levshina, T.; Guru, A.

2014-06-01

28

Immune Privilege of Corneal Allografts  

PubMed Central

Corneal transplantation has been performed successfully for over 100 years. Normally, HLA typing and systemic immunosuppressive drugs are not utilized, yet 90% of corneal allografts survive. In rodents, corneal allografts representing maximal histoincompatibility enjoy >50% survival even without immunosuppressive drugs. By contrast, other categories of transplants are invariably rejected in such donor/host combinations. The acceptance of corneal allografts compared to other categories of allografts is called immune privilege. The cornea expresses factors that contribute to immune privilege by preventing the induction and expression of immune responses to histocompatibility antigens on the corneal allograft. Among these are soluble and cell membrane molecules that block immune effector elements and also apoptosis of T lymphocytes. However, some conditions rob the corneal allograft of its immune privilege and promote rejection, which remains the leading cause of corneal allograft failure. Recent studies have examined new strategies for restoring immune privilege to such high-risk hosts. PMID:20482389

Niederkorn, Jerry Y.; Larkin, D. Frank P.

2013-01-01

29

25 CFR 1000.64 - How does the Tribe/Consortium know when and how to apply to OSG for a planning and negotiation...  

Code of Federal Regulations, 2010 CFR

...know when and how to apply to OSG for a planning and negotiation grant? 1000.64...ACT Other Financial Assistance for Planning and Negotiation Grants for Non-BIA...know when and how to apply to OSG for a planning and negotiation grant? When...

2010-04-01

30

25 CFR 1000.69 - How can a Tribe/Consortium obtain comments or selection documents received or utilized after OSG...  

Code of Federal Regulations, 2010 CFR

...utilized after OSG has made a decision on a planning grant application? 1000.69 Section...ACT Other Financial Assistance for Planning and Negotiation Grants for Non-BIA...utilized after OSG has made a decision on a planning grant application? A...

2010-04-01

31

Testisimmune privilege - Assumptions versus facts  

PubMed Central

The testis has long enjoyed a reputation as an immunologically privileged site based on its ability to protect auto-antigenic germ cells and provide an optimal environment for the extended survival of transplanted allo- or xeno-grafts. Exploration of the role of anatomical, physiological, immunological and cellular components in testis immune privilege revealed that the tolerogenic environment of the testis is a result of the immunomodulatory factors expressed or secreted by testicular cells (mainly Sertoli cells, peritubular myoid cells, Leydig cells, and resident macrophages). The blood-testis barrier/Sertoli cell barrier, is also important to seclude advanced germ cells but its requirement in testis immune privilege needs further investigation. Testicular immune privilege is not permanent, as an effective immune response can be mounted against transplanted tissue, and bacterial/viral infections in the testis can be effectively eliminated. Overall, the cellular components control the fate of the immune response and can shift the response from immunodestructive to immunoprotective, resulting in immune privilege. PMID:25309630

Kaur, G.; Mital, P.; Dufour, J.M.

2013-01-01

32

Testisimmune privilege - Assumptions versus facts.  

PubMed

The testis has long enjoyed a reputation as an immunologically privileged site based on its ability to protect auto-antigenic germ cells and provide an optimal environment for the extended survival of transplanted allo- or xeno-grafts. Exploration of the role of anatomical, physiological, immunological and cellular components in testis immune privilege revealed that the tolerogenic environment of the testis is a result of the immunomodulatory factors expressed or secreted by testicular cells (mainly Sertoli cells, peritubular myoid cells, Leydig cells, and resident macrophages). The blood-testis barrier/Sertoli cell barrier, is also important to seclude advanced germ cells but its requirement in testis immune privilege needs further investigation. Testicular immune privilege is not permanent, as an effective immune response can be mounted against transplanted tissue, and bacterial/viral infections in the testis can be effectively eliminated. Overall, the cellular components control the fate of the immune response and can shift the response from immunodestructive to immunoprotective, resulting in immune privilege. PMID:25309630

Kaur, G; Mital, P; Dufour, J M

2013-01-01

33

Corneal Transplantation and Immune Privilege  

PubMed Central

Corneal transplants have been successfully performed in human subjects for over 100 years and enjoy an immune privilege that is unrivaled in the field of transplantation. Immune privilege is defined as the reduced incidence and tempo in the immune rejection of corneal allografts compared to other categories of organ allografts performed under the same conditions. Skin allografts transplanted across various MHC or minor histocompatibility barriers undergo rejection in approximately 100% of the hosts. By contrast, orthotopic corneal allografts experience long-term survival in 50% to >90% of the hosts, depending on the histocompatibility barriers that confront the host. The capacity of corneal allografts to evade immune rejection is attributable to multiple anatomical, physiological, and immunoregulatory conditions that conspire to prevent the induction and expression of alloimmunity. PMID:23360158

Niederkorn, Jerry Y.

2013-01-01

34

Privileged Access, Privileged Accounts: Toward a Socially Structured Theory of Resources and Discourses  

ERIC Educational Resources Information Center

Environmental harms involve a "double diversion"--two forms of privilege that deserve greater attention. The first involves disproportionality, or the privileged diversion of rights/resources: Contrary to common assumptions, much environmental damage is not economically "necessary"--instead, it represents privileged access to the environment. It…

Freudenburg, William R.

2005-01-01

35

14 CFR 61.2 - Exercise of Privilege.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

2010-01-01

36

14 CFR 61.2 - Exercise of Privilege.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

2011-01-01

37

NISTIR 7665 Proceedings of the Privilege  

E-print Network

access control models; ascertaining the current state of the practice and future research directions a user's access rights to a system. This definition aligns with the Federal Identity, Credential, and Access Management (FICAM) definition of privilege management, and firmly establishes privilege management

38

Analysis of the current use, benefit, and value of the Open Science Grid  

NASA Astrophysics Data System (ADS)

The Open Science Grid usage has ramped up more than 25% in the past twelve months due to both the increase in throughput of the core stakeholders - US LHC, LIGO and Run II - and increase in usage by non-physics communities. It is important to understand the value collaborative projects, such as the OSG, contribute to the scientific community. This needs to be cognizant of the environment of commercial cloud offerings, the evolving and maturing middleware for grid based distributed computing, and the evolution in science and research dependence on computation. We present a first categorization of OSG value and analysis across several different aspects of the Consortium's goals and activities. And lastly, we presents some of the upcoming challenges of LHC data analysis ramp up and our ongoing contributions to the World Wide LHC Computing Grid.

Pordes, R.; Open Science Grid Executive Board, the; Weichel, J.

2010-04-01

39

Analysis of the Current Use, Benefit, and Value of the Open Science Grid  

SciTech Connect

The Open Science Grid usage has ramped up more than 25% in the past twelve months due to both the increase in throughput of the core stakeholders - US LHC, LIGO and Run II - and increase in usage by nonphysics communities. It is important to understand the value collaborative projects, such as the OSG, contribute to the scientific community. This needs to be cognizant of the environment of commercial cloud offerings, the evolving and maturing middleware for grid based distributed computing, and the evolution in science and research dependence on computation. We present a first categorization of OSG value and analysis across several different aspects of the Consortium's goals and activities. And lastly, we presents some of the upcoming challenges of LHC data analysis ramp up and our ongoing contributions to the World Wide LHC Computing Grid.

Pordes, R.; /Fermilab

2009-04-01

40

Open Science Grid: Linking Universities and Laboratories In National Cyberinfrastructure  

NASA Astrophysics Data System (ADS)

Open Science Grid is a consortium of researchers from universities and national laboratories that operates a national computing infrastructure serving large-scale scientific and engineering research. While OSG's scale has been primarily driven by the demands of the LHC experiments, it currently serves particle and nuclear physics, gravitational wave searches, digital astronomy, genomic science, weather forecasting, molecular modeling, structural biology and nanoscience. The OSG distributed computing facility links campus and regional computing resources and is a major component of the Worldwide LHC Computing Grid (WLCG) that handles the massive computing and storage needs of experiments at the Large Hadron Collider. This collaborative work has provided a wealth of results, including powerful new software tools and services; a uniform packaging scheme (the Virtual Data Toolkit) that simplifies software deployment across many sites in the US and Europe; integration of complex tools and services in large science applications; multiple education and outreach projects; and new approaches to integrating advanced network infrastructure in scientific computing applications. More importantly, OSG has provided unique collaborative opportunities between researchers in a variety of research disciplines.

Avery, Paul

2011-10-01

41

GOC-TX: A Reliable Ticket Synchronization Application for the Open Science Grid  

NASA Astrophysics Data System (ADS)

One of the major operational issues faced by large multi-institutional collaborations is permitting its users and support staff to use their native ticket tracking environment while also exchanging these tickets with collaborators. After several failed attempts at email-parser based ticket exchanges, the OSG Operations Group has designed a comprehensive ticket synchronizing application. The GOC-TX application uses web-service interfaces offered by various commercial, open source and other homegrown ticketing systems, to synchronize tickets between two or more of these systems. GOC-TX operates independently from any ticketing system. It can be triggered by one ticketing system via email, active messaging, or a web-services call to check for current sync-status, pull applicable recent updates since prior synchronizations to the source ticket, and apply the updates to a destination ticket. The currently deployed production version of GOC-TX is able to synchronize tickets between the Numara Footprints ticketing system used by the OSG and the following systems: European Grid Initiative's system Global Grid User Support (GGUS) and the Request Tracker (RT) system used by Brookhaven. Additional interfaces to the BMC Remedy system used by Fermilab, and to other instances of RT used by other OSG partners, are expected to be completed in summer 2010. A fully configurable open source version is expected to be made available by early autumn 2010. This paper will cover the structure of the GOC-TX application, its evolution, and the problems encountered by OSG Operations group with ticket exchange within the OSG Collaboration.

Hayashi, Soichi; Gopu, Arvind; Quick, Robert

2011-12-01

42

78 FR 60250 - Order Denying Export Privileges  

Federal Register 2010, 2011, 2012, 2013, 2014

...Export Privileges In the Matter of: Vikramaditya Singh, a.k.a. Vik A, 16810 E. Avenue of the Fountains...District Court, District of Delaware, Vikramaditya Singh, a.k.a.Vik A (``Singh'') was convicted of violating the...

2013-10-01

43

78 FR 58995 - Order Denying Export Privileges  

Federal Register 2010, 2011, 2012, 2013, 2014

...Denying Export Privileges In the Matter of: Iman Kazerani, 153 Orient Way, Rutherford...District Court, District of New Jersey, Iman Kazerani (``Kazerani'') was convicted...hereby Ordered I. Until January 30, 2018, Iman Kazerani, with a last known address...

2013-09-25

44

Interscholastic Sports: A Character-Building Privilege  

E-print Network

High school coaches should teach, model, and reinforce to their athletes that participation in interscholastic sports is a character-building privilege earned by showing respect, playing fair, and striving to win while ...

Lumpkin, Angela; Stokowski, Sarah

2011-01-01

45

78 FR 37787 - Order Denying Export Privileges  

Federal Register 2010, 2011, 2012, 2013, 2014

...Export Privileges In the Matter of: Manuel Mario Pavon, Inmate Number 96976- 279...Court, Southern District of Texas, Manuel Mario Pavon (``Pavon'') was convicted...Ordered I. Until January 13, 2022, Manuel Mario Pavon, with a last known address...

2013-06-24

46

Litigating Secrets: Comparative Perspectives on the State Secrets Privilege  

Microsoft Academic Search

The state secrets privilege is a common law evidentiary privilege, which enables the government to prevent disclosure of sensitive state secrets in the course of litigation. The privilege has never been clarified by statute. Congress undertook reform efforts in 2008 out of concerns that the Bush administration overreached in its claims of privilege by seeking more dismissals during the pleadings

Sudha Setty

2009-01-01

47

FermiGrid - experience and future plans  

SciTech Connect

Fermilab supports a scientific program that includes experiments and scientists located across the globe. In order to better serve this community, Fermilab has placed its production computer resources in a Campus Grid infrastructure called 'FermiGrid'. The FermiGrid infrastructure allows the large experiments at Fermilab to have priority access to their own resources, enables sharing of these resources in an opportunistic fashion, and movement of work (jobs, data) between the Campus Grid and National Grids such as Open Science Grid and the WLCG. FermiGrid resources support multiple Virtual Organizations (VOs), including VOs from the Open Science Grid (OSG), EGEE and the Worldwide LHC Computing Grid Collaboration (WLCG). Fermilab also makes leading contributions to the Open Science Grid in the areas of accounting, batch computing, grid security, job management, resource selection, site infrastructure, storage management, and VO services. Through the FermiGrid interfaces, authenticated and authorized VOs and individuals may access our core grid services, the 10,000+ Fermilab resident CPUs, near-petabyte (including CMS) online disk pools and the multi-petabyte Fermilab Mass Storage System. These core grid services include a site wide Globus gatekeeper, VO management services for several VOs, Fermilab site authorization services, grid user mapping services, as well as job accounting and monitoring, resource selection and data movement services. Access to these services is via standard and well-supported grid interfaces. We will report on the user experience of using the FermiGrid campus infrastructure interfaced to a national cyberinfrastructure--the successes and the problems.

Chadwick, K.; Berman, E.; Canal, P.; Hesselroth, T.; Garzoglio, G.; Levshina, T.; Sergeev, V.; Sfiligoi, I.; Timm, S.; Yocum, D.; /Fermilab

2007-09-01

48

The PacCAF Grid portal for the CDF experiment  

NASA Astrophysics Data System (ADS)

Distributed computing for the CDF experiment has been developed and is evolving towards shared resources on the computing Grid. Dedicated CAFs (CDF Analysis Farm) were constructed on Condor pools with a suit of services for user authentication, software distribution, and network connection to worker nodes.With the Condor Glide-in mechanism, the CAFs are extended to using dynamic worker pools collected from the Grid. The PacCAF (Pacific CAF) is the Glide CAF thus built to provide a single point portal to LCG (LHC ComputingGrid) and OSG (Open Science Grid) sites in the Pacific Asia region. We discuss the implementation and service as a late-binding solution towards Grid computing.

Hou, Suen

49

48 CFR 52.247-57 - Transportation Transit Privilege Credits.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Transportation Transit Privilege Credits. 52.247-57 ...Clauses 52.247-57 Transportation Transit Privilege Credits. As prescribed...trade, that offerors may have potential transit credits available and the...

2010-10-01

50

48 CFR 52.247-57 - Transportation Transit Privilege Credits.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 false Transportation Transit Privilege Credits. 52.247-57 ...Clauses 52.247-57 Transportation Transit Privilege Credits. As prescribed...trade, that offerors may have potential transit credits available and the...

2012-10-01

51

48 CFR 52.247-57 - Transportation Transit Privilege Credits.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 false Transportation Transit Privilege Credits. 52.247-57 ...Clauses 52.247-57 Transportation Transit Privilege Credits. As prescribed...trade, that offerors may have potential transit credits available and the...

2011-10-01

52

48 CFR 52.247-57 - Transportation Transit Privilege Credits.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Transportation Transit Privilege Credits. 52.247-57 ...Clauses 52.247-57 Transportation Transit Privilege Credits. As prescribed...trade, that offerors may have potential transit credits available and the...

2013-10-01

53

19 CFR 142.25 - Discontinuance of immediate delivery privileges.  

Code of Federal Regulations, 2011 CFR

...2011-04-01 false Discontinuance of immediate delivery privileges. 142.25 Section 142...ENTRY PROCESS Special Permit for Immediate Delivery § 142.25 Discontinuance of immediate delivery privileges. (a) Authority of port...

2011-04-01

54

19 CFR 142.25 - Discontinuance of immediate delivery privileges.  

Code of Federal Regulations, 2012 CFR

...2012-04-01 false Discontinuance of immediate delivery privileges. 142.25 Section 142...ENTRY PROCESS Special Permit for Immediate Delivery § 142.25 Discontinuance of immediate delivery privileges. (a) Authority of port...

2012-04-01

55

19 CFR 142.25 - Discontinuance of immediate delivery privileges.  

Code of Federal Regulations, 2014 CFR

...2014-04-01 false Discontinuance of immediate delivery privileges. 142.25 Section 142...ENTRY PROCESS Special Permit for Immediate Delivery § 142.25 Discontinuance of immediate delivery privileges. (a) Authority of port...

2014-04-01

56

19 CFR 142.25 - Discontinuance of immediate delivery privileges.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false Discontinuance of immediate delivery privileges. 142.25 Section 142...ENTRY PROCESS Special Permit for Immediate Delivery § 142.25 Discontinuance of immediate delivery privileges. (a) Authority of port...

2010-04-01

57

19 CFR 142.25 - Discontinuance of immediate delivery privileges.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 false Discontinuance of immediate delivery privileges. 142.25 Section 142...ENTRY PROCESS Special Permit for Immediate Delivery § 142.25 Discontinuance of immediate delivery privileges. (a) Authority of port...

2013-04-01

58

Thank you for the privilege  

PubMed Central

Thank you for the privilege to serve as the EFOST President. I am deeply humbled for having been selected to serve as the new President of EFOST: this is not for the work that I have undertaken, but for what others around me have done. I hope that my past duties as President of BOSTAA, and as president of the Sports and Exercise Medicine of the Royal Society of Medicine will help me in performing these my new duties. It all started in 1992, and the EFOST is now just leaving its adolescent phase, with all its teenager problems. There is truth in Newton’s quote about standing on the shoulders of giants. Francois, you and the other leaders at EFOST have generated the momentum to keep moving EFOST forward, and the wisdom to keep it moving in the right direction. We all benefited from your contributions, dedication and volunteerism. To step into this role feels a little like steering a train. EFOST operates under a strategic plan which sets our direction and controls how the changing succession of leaders navigates. This plan is critical to helping us maintain focus, direction, and purpose. It is crucial that we focus on our strategic direction. However, we must continue to monitor the environment around us. We must recognize the changing influences so that we can respond appropriately. Europe is in a state of flux, with great challenges, both scientifically and economically. Strategically, we recognized all this a while ago, and we have tried, and succeeded, to be inclusive. The policy has worked, and we have embraced, and we have been embraced, by several countries during Dr Kelberine’s tenure. I can only thank him and the Board for this vision, and can confirm that I wish this train to continue to move in this direction. A train can only move if it is on the right tracks: I look forward to work with the great engineers of the organization, and welcome the help of the Board of Trustees to keep us on track. EFOST was born as a get together of a group of friends, and is the baby that was born from the ideas and ideals of several individuals who are in this room today. To them, my thanks for such ideas and ideals, and an assurance: I wish to uphold them. EFOST will need to move forward, and to ensure that the needs of the Sports Trauma Societies which form, sustain, foster and nurture it are satisfied. For this, one of the charges given to me was to change the bylaws. The process was thorny, but the results have been here for all to see: a flexible, dynamic Executive Board, and a Board at Large which is really representative of all Europe. From you, I expect support. To you, I offer dedication. The life of a President is often lonely. I am a social animal, and I do not wish to be lonely. I intend to use the help and advice of my Past President, Francois, and to have the support of my Vice President, Gernot. I take this opportunity to thank them in advance, and to apologise to them in advance: I know that it is difficult to work with me. I want things yesterday, and, despite 28 years outside of Italy, my Italian quick fire temper can still surface. EFOST is a great organization, and it has forged great links. You have all seen how the work that Burt has undertaken and the endless meetings that Francois has held have borne fruits: the EFOST-AOSSM traveling fellowship is now a reality, and the support given by all of you on the Board has been superb: many thanks. One of our Past Presidents, Paco Biosca, is now the Chief Medical Officer of Chelsea: with him, we have succeeded in establishing a football Team Physician fellowship, and we look forward to strengthening these ties. More on fellowships during the years of my tenure. But remember: it will not be my doing, it will be the work of all of you, of all of us. EFOST will need to speak with one voice to the world and the sister organizations. In Europe, we have all too often projected the wrong image of weak leadership and of having more than one train controller. The work that Francois has undertaken has ensured that everybody on the Executive Board sang from the

Maffulli, Nicola

2012-01-01

59

Does Critical Pedagogy Work with Privileged Students?  

ERIC Educational Resources Information Center

The authors examine the limitations of critical pedagogy, as commonly conceptualized in U.S. multicultural and social foundations fields. What the authors have concluded is that there is a definite need to re-invent critical pedagogy for its implementation in the more privileged spaces of U.S. teacher education programs. In order for critical…

Allen, Ricky Lee; Rossatto, Cesar Augusto

2009-01-01

60

Recognizing Privilege: Rural, Urban, and International Perspectives  

ERIC Educational Resources Information Center

Forms of White oppression in the United States are hierarchically evaluated through male-dominated society. This paper concentrates on a different perspective--White, female privilege through the experiences and self-reflections of narratives from three geographical perspectives--rural, urban, and international. Within the theoretical frameworks…

Munn, Sunny L.; Rinfret, Sara; Davitt, Kendra

2010-01-01

61

78 FR 37518 - Order Denying Export Privileges  

Federal Register 2010, 2011, 2012, 2013, 2014

...Export Privileges In the Matter of: Lee Roy Perez, Inmate Number 85828- 279...Court, Southern District of Texas, Lee Roy Perez (``Perez'') was convicted of...Ordered I. Until December 13, 2021, Lee Roy Perez, with a last known address at:...

2013-06-21

62

78 FR 4833 - Order Denying Export Privileges  

Federal Register 2010, 2011, 2012, 2013, 2014

...OF COMMERCE Bureau of Industry and Security Order Denying Export Privileges In...Hitachi JU-Z2 Junction Units (camera control box, 8-port multiple television...section 4(b) of the Internal Security Act of 1950 (50 U.S.C....

2013-01-23

63

Straight Privilege: Unpacking the (Still) Invisible Knapsack  

ERIC Educational Resources Information Center

Several unearned benefits attending straight privilege are listed, prefaced by two main arguments. First, it is argued that the rampant heterosexism in the U.S. is largely attributable to many Americans' framing of heterosexism as a matter of religious freedom rather than as a form of bigotry. It is further argued that educators' elimination of…

Tollefson, Kaia

2010-01-01

64

Property-based testing of privileged programs  

Microsoft Academic Search

Addresses the problem of testing security-relevant software, especially privileged (typically, setuid root) and daemon programs in UNIX. The problem is important, since it is these programs that are the source of most UNIX security flaws. For some programs, such as the UNIX sendmail program, new security flaws are still being discovered, despite being in use for many years. For special-purpose

George Fink; Karl Levitt

1994-01-01

65

ER-Mitochondria Communication. How Privileged?  

NSDL National Science Digital Library

Mitochondria have a low affinity for Ca2+, but they take up these ions during normal cell activity because they are in close proximity to the sites of calcium entry into the cell and of internal Ca2+ release. This gives mitochondria privileged access to cytoplasmic Ca2+ without requiring a direct communication with the endoplasmic reticulum.

Clara Franzini-Armstrong (University of Pennsylvania)

2007-08-01

66

Privileged scaffolds for library design and drug discovery.  

PubMed

This review explores the concept of using privileged scaffolds to identify biologically active compounds through building chemical libraries. We hope to accomplish three main objectives: to provide one of the most comprehensive listings of privileged scaffolds; to reveal through four selected examples the present state of the art in privileged scaffold library synthesis (in hopes of inspiring new and even more creative approaches); and also to offer some thoughts on how new privileged scaffolds might be identified and exploited. PMID:20303320

Welsch, Matthew E; Snyder, Scott A; Stockwell, Brent R

2010-06-01

67

Ocular Immune Privilege in the Year 2010: Ocular Immune Privilege and Uveitis  

PubMed Central

The phrase “immune privilege” was coined by Peter Medawar to describe the absence of an immune response to allografts placed into the anterior chamber of the eye or brain. We now understand that immune privilege is more than a passive microenvironment with a distinctive anatomical structure that holds back immunity. The ocular microenvironment actively engages the immune system with immunosuppressive biochemical mechanisms. The unique characteristics of ocular immune privilege appear designed to protect the eye from damage while preserving foveal vision, thus providing the host with a definite survival advantage. However, the protection is not always sufficient and the eye becomes susceptible to uveitis. Uveitis is an intraocular inflammatory disorder that encompasses a wide range of underlying etiologies. It may be idiopathic or associated with systemic disease or infection. Understanding the biochemistry of immune privilege has the potential to identify its weaknesses that allow for immunity to break through. PMID:21091058

Taylor, Andrew W.; Kaplan, Henry J.

2012-01-01

68

What Business Students Should Know about Attorney-Client Privilege  

ERIC Educational Resources Information Center

The case law on attorney-client privilege is extensive and can be somewhat complex. Over seven hundred articles in Westlaw, for example, have the phrase "attorney-client privilege" in the title; in the last three years alone, there have been over 3700 federal cases in which the phrase "attorney-client privilege" appears at least once. However,…

Draba, Robert; Marshall, Brent

2012-01-01

69

Privileged Communication in the School Psychologist-Client Relationship  

ERIC Educational Resources Information Center

In the years since the 1996 Supreme Court "Jaffee v. Redmond" decision, many states broadened the scope of their laws governing privilege to include non-doctoral school psychologists. This article addresses the meaning of the term "privileged communication" and identifies common exceptions to privilege. Findings from a computerized search of the…

Jacob, Susan; Powers, Katie E.

2009-01-01

70

Property-Based Testing of Privileged Programs  

Microsoft Academic Search

We address the problem of testing security-relevantsoftware, especially privileged (typically setuid root)and daemon programs in UNIX. The problem is important,since it is these programs that are the sourceof most UNIX security flaws. For some programs,such as the UNIX sendmail program, new securityflaws are still discovered, despite being in use for years.For special-purpose systems with fewer users, flaws arelikely to remain

George Fink Karl Levitt

1994-01-01

71

OASIS: a data and software distribution service for Open Science Grid  

NASA Astrophysics Data System (ADS)

The Open Science Grid encourages the concept of software portability: a user's scientific application should be able to run at as many sites as possible. It is necessary to provide a mechanism for OSG Virtual Organizations to install software at sites. Since its initial release, the OSG Compute Element has provided an application software installation directory to Virtual Organizations, where they can create their own sub-directory, install software into that sub-directory, and have the directory shared on the worker nodes at that site. The current model has shortcomings with regard to permissions, policies, versioning, and the lack of a unified, collective procedure or toolset for deploying software across all sites. Therefore, a new mechanism for data and software distributing is desirable. The architecture for the OSG Application Software Installation Service (OASIS) is a server-client model: the software and data are installed only once in a single place, and are automatically distributed to all client sites simultaneously. Central file distribution offers other advantages, including server-side authentication and authorization, activity records, quota management, data validation and inspection, and well-defined versioning and deletion policies. The architecture, as well as a complete analysis of the current implementation, will be described in this paper.

Bockelman, B.; Caballero Bejar, J.; De Stefano, J.; Hover, J.; Quick, R.; Teige, S.

2014-06-01

72

19 CFR 4.94 - Yacht privileges and obligations.  

Code of Federal Regulations, 2010 CFR

...privileges in the following countries: Argentina Australia Austria Bahama Islands Belgium Bermuda Canada Denmark Finland France Germany, Federal Republic of Greece Honduras Ireland Italy Jamaica Liberia Marshall Islands...

2010-04-01

73

Privileged Pursuits of Social Justice: Exploring Privileged College Students' Motivation for Engaging in Social Justice  

ERIC Educational Resources Information Center

The author of this article explores the motivation factors that lead privileged college students to be involved in social justice efforts. The students participating in this study identified multiple reasons for their initial and continued involvement in social justice work, but all students identified three main sources of motivation: responding…

Howard, Adam

2011-01-01

74

19 CFR 356.11 - Procedures for obtaining access to privileged information.  

Code of Federal Regulations, 2010 CFR

...for obtaining access to privileged information. 356.11 Section 356.11...AGREEMENT Proprietary and Privileged Information § 356.11 Procedures for obtaining access to privileged information. (a) Persons who may apply...

2010-04-01

75

19 CFR 356.11 - Procedures for obtaining access to privileged information.  

Code of Federal Regulations, 2011 CFR

...for obtaining access to privileged information. 356.11 Section 356.11...AGREEMENT Proprietary and Privileged Information § 356.11 Procedures for obtaining access to privileged information. (a) Persons who may apply...

2011-04-01

76

19 CFR 356.11 - Procedures for obtaining access to privileged information.  

Code of Federal Regulations, 2013 CFR

...for obtaining access to privileged information. 356.11 Section 356.11...AGREEMENT Proprietary and Privileged Information § 356.11 Procedures for obtaining access to privileged information. (a) Persons who may apply...

2013-04-01

77

19 CFR 356.11 - Procedures for obtaining access to privileged information.  

Code of Federal Regulations, 2014 CFR

...for obtaining access to privileged information. 356.11 Section 356.11...AGREEMENT Proprietary and Privileged Information § 356.11 Procedures for obtaining access to privileged information. (a) Persons who may apply...

2014-04-01

78

19 CFR 356.11 - Procedures for obtaining access to privileged information.  

Code of Federal Regulations, 2012 CFR

...for obtaining access to privileged information. 356.11 Section 356.11...AGREEMENT Proprietary and Privileged Information § 356.11 Procedures for obtaining access to privileged information. (a) Persons who may apply...

2012-04-01

79

32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.  

Code of Federal Regulations, 2014 CFR

...National Defense 4 2014-07-01 2013-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

2014-07-01

80

32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.  

Code of Federal Regulations, 2010 CFR

...National Defense 4 2010-07-01 2010-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

2010-07-01

81

32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.  

Code of Federal Regulations, 2012 CFR

...National Defense 4 2012-07-01 2011-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

2012-07-01

82

32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.  

Code of Federal Regulations, 2011 CFR

...National Defense 4 2011-07-01 2011-07-01 false Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

2011-07-01

83

42 CFR 3.204 - Privilege of patient safety work product.  

Code of Federal Regulations, 2011 CFR

... false Privilege of patient safety work product. 3.204 Section 3.204...SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and Privilege Protections of Patient Safety Work Product § 3.204 Privilege of...

2011-10-01

84

42 CFR 3.204 - Privilege of patient safety work product.  

Code of Federal Regulations, 2012 CFR

... false Privilege of patient safety work product. 3.204 Section 3.204...SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and Privilege Protections of Patient Safety Work Product § 3.204 Privilege of...

2012-10-01

85

42 CFR 3.204 - Privilege of patient safety work product.  

Code of Federal Regulations, 2013 CFR

... false Privilege of patient safety work product. 3.204 Section 3.204...SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and Privilege Protections of Patient Safety Work Product § 3.204 Privilege of...

2013-10-01

86

White Racial Identity Statuses as Predictors of White Privilege Awareness  

ERIC Educational Resources Information Center

This study explored the relationship between White privilege awareness and White racial identity development for 197 counseling trainees. Results indicated that 3 of J. E. Helms's (1984, 1990, 1995) White racial identity statuses (i.e., Contact, Reintegration, and Immersion/Emersian) significantly predicted White privilege awareness. Implications…

Hays, Danica G.; Chang, Catherine Y.; Havice, Pamela

2008-01-01

87

76 FR 6554 - Appeal Authority When Researcher Privileges Are Revoked  

Federal Register 2010, 2011, 2012, 2013, 2014

...researchers whose privileges have been revoked for specific behaviors, from the Archivist of the United States to the Deputy Archivist...part 1254. The privileges may be revoked for the following behaviors: Refusing to follow the rules and regulations of a NARA...

2011-02-07

88

Spinorial space-time and privileged space direction (I)  

E-print Network

Spinorial space-time and privileged space direction (I) Luis Gonzalez-Mestres Abstract Contrary of a privileged space direction are not strange phenomena from the point of view of fundamental space-time geometry. As already emphasized in our previous papers on the subject, the spinorial space-time we

Paris-Sud XI, Université de

89

Revised June 2013 HIGH SCHOOL Special Privilege Registration  

E-print Network

Revised June 2013 HIGH SCHOOL Special Privilege Registration The High School Special Privileges card is available to area high school students whose research requires access to the University Libraries' collection. Referral by the high school librarian is required and indicates that the student has

Dasgupta, Dipankar

90

ReSS: A Resource Selection Service for the Open Science Grid  

SciTech Connect

The Open Science Grid offers access to hundreds of computing and storage resources via standard Grid interfaces. Before the deployment of an automated resource selection system, users had to submit jobs directly to these resources. They would manually select a resource and specify all relevant attributes in the job description prior to submitting the job. The necessity of a human intervention in resource selection and attribute specification hinders automated job management components from accessing OSG resources and it is inconvenient for the users. The Resource Selection Service (ReSS) project addresses these shortcomings. The system integrates condor technology, for the core match making service, with the gLite CEMon component, for gathering and publishing resource information in the Glue Schema format. Each one of these components communicates over secure protocols via web services interfaces. The system is currently used in production on OSG by the DZero Experiment, the Engagement Virtual Organization, and the Dark Energy. It is also the resource selection service for the Fermilab Campus Grid, FermiGrid. ReSS is considered a lightweight solution to push-based workload management. This paper describes the architecture, performance, and typical usage of the system.

Garzoglio, Gabriele; Levshina, Tanya; Mhashilkar, Parag; Timm, Steve; /Fermilab

2008-01-01

91

Ocular immune privilege and CTL tolerance.  

PubMed

The introduction of antigens into the anterior chamber (AC) of the eye, an immune-privileged site, induces immune responses that effectively eliminate ocular pathogens while minimizing tissue damage that can cause blindness. This specialized immune response, termed AC associated immune deviation (ACAID) is thought to be an evolutionary compromise to preserve the delicate microanatomy of the eye while maintaining ocular immune responses. The injection of soluble antigen in the AC of mice results in systemic tolerance characterized by reduced priming for antigen-specific delayed-type hypersensitivity (DTH) and cytotoxic T lymphocyte (CTL) responses. Similarly, the injection of histo incompatible tumors into the AC of mice reduces priming for DTH responses specific to minor antigens. However, robust tumor-specific CTL responses are induced systemically following this treatment that are capable of eliminating a subsequent injection of the same tumors in the skin or the opposite eye. Interestingly, CTL responses induced by administration of tumors in the AC fail to eliminate the primary ocular tumor. In this review, we compare and contrast CTL responses generated by the injection of soluble or tumor-associated antigens in the AC and discuss mechanisms employed to induce ocular CTL tolerance. PMID:15181274

McKenna, Kyle C; Kapp, Judith A

2004-01-01

92

75 FR 11112 - Action Affecting Export Privileges; Robert Kraaipoel  

Federal Register 2010, 2011, 2012, 2013, 2014

...Security Action Affecting Export Privileges; Robert Kraaipoel In the Matter of: Robert Kraaipoel, P.O. Box 418, Heerhugowaard...Netherlands 1700AK. Respondent. Order Relating to Robert Kraaipoel The Bureau of Industry and...

2010-03-10

93

14 CFR 1261.317 - Attorney-client privilege.  

Code of Federal Regulations, 2010 CFR

14 Aeronautics and Space 5 2010-01-01 2010-01-01 false...Attorney-client privilege. 1261.317 Section 1261.317 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROCESSING OF MONETARY...

2010-01-01

94

14 CFR 1261.317 - Attorney-client privilege.  

Code of Federal Regulations, 2014 CFR

14 Aeronautics and Space 5 2014-01-01 2014-01-01 false...Attorney-client privilege. 1261.317 Section 1261.317 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROCESSING OF MONETARY...

2014-01-01

95

14 CFR 1261.317 - Attorney-client privilege.  

Code of Federal Regulations, 2011 CFR

14 Aeronautics and Space 5 2011-01-01 2010-01-01 true...Attorney-client privilege. 1261.317 Section 1261.317 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROCESSING OF MONETARY...

2011-01-01

96

14 CFR 1261.317 - Attorney-client privilege.  

Code of Federal Regulations, 2012 CFR

14 Aeronautics and Space 5 2012-01-01 2012-01-01 false...Attorney-client privilege. 1261.317 Section 1261.317 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROCESSING OF MONETARY...

2012-01-01

97

14 CFR 1261.317 - Attorney-client privilege.  

Code of Federal Regulations, 2013 CFR

14 Aeronautics and Space 5 2013-01-01 2013-01-01 false...Attorney-client privilege. 1261.317 Section 1261.317 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROCESSING OF MONETARY...

2013-01-01

98

Testicular defense systems: immune privilege and innate immunity  

PubMed Central

The mammalian testis possesses a special immunological environment because of its properties of remarkable immune privilege and effective local innate immunity. Testicular immune privilege protects immunogenic germ cells from systemic immune attack, and local innate immunity is important in preventing testicular microbial infections. The breakdown of local testicular immune homeostasis may lead to orchitis, an etiological factor of male infertility. The mechanisms underlying testicular immune privilege have been investigated for a long time. Increasing evidence shows that both a local immunosuppressive milieu and systemic immune tolerance are involved in maintaining testicular immune privilege status. The mechanisms underlying testicular innate immunity are emerging based on the investigation of the pattern recognition receptor-mediated innate immune response in testicular cells. This review summarizes our current understanding of testicular defense mechanisms and identifies topics that merit further investigation. PMID:24954222

Zhao, Shutao; Zhu, Weiwei; Xue, Shepu; Han, Daishu

2014-01-01

99

19 CFR 146.41 - Privileged foreign status.  

Code of Federal Regulations, 2011 CFR

...as privileged foreign merchandise cannot be abandoned and remains applicable to the merchandise even if changed in form by manipulation or manufacture, except in the case of recoverable waste (see § 146.42(b)), as long as the merchandise remains...

2011-04-01

100

The privileged immunity of immune privileged organs: the case of the eye  

PubMed Central

Understanding of ocular diseases and the search for their cure have been based on the common assumption that the eye is an immune privileged site, and the consequent conclusion that entry of immune cells to this organ is forbidden. Accordingly, it was assumed that when immune cell entry does occur, this reflects an undesired outcome of breached barriers. However, studies spanning more than a decade have demonstrated that acute insults to the retina, or chronic conditions resulting in retinal ganglion cell loss, such as in glaucoma, result in an inferior outcome in immunocompromised mice; likewise, steroidal treatment was found to be detrimental under these conditions. Moreover, even conditions that are associated with inflammation, such as age-related macular degeneration, are not currently believed to require immune suppression for treatment, but rather, are thought to benefit from immune modulation. Here, we propose that the immune privilege of the eye is its ability to enable, upon need, the entry of selected immune cells for its repair and healing, rather than to altogether prevent immune cell entry. The implications for acute and chronic degenerative diseases, as well as for infection and inflammatory diseases, are discussed. PMID:23049533

Benhar, Inbal; London, Anat; Schwartz, Michal

2012-01-01

101

Grid management  

NASA Technical Reports Server (NTRS)

A computational environment that allows many Computational Fluid Dynamics (CFD) engineers to work on the same project exists in the Special Project Office (SPO). This environment enables several users to carry out the task of grid generation. The grid management system, used by the engineers, is described in a brief overview. The topics will include the grid file naming system, the grid-generation procedure, grid storage, and the grid format standard.

Hwang, Danny

1992-01-01

102

Progress and Privilege: A book about environmentalism meets the press  

NASA Astrophysics Data System (ADS)

In August 1982, Anchor Press published Progress and Privilege, a book by William Tucker. Tucker's thesis was that environmentalism represented “the ideas of aristocratic conservatism translated onto a popular scale,” and that it had entwined itself with the protection of social and economic privilege. The book was riddled with fundamental errors of fact and of logic, but it also was literate and superficially impressive. It was widely reviewed. An examination of 23 reviews shows this: Most of the reviews in daily newspapers were written by laymen who couldn't analyze Tucker's arguments or recognize his mistakes. Most of the reviews in specialized publications were done by competent analysts who brought some special knowledge to their work. With the latter group of reviewers, Progress and Privilege fared poorly.

Bennetta, William J.

1984-11-01

103

CDF GlideinWMS usage in Grid computing of high energy physics  

NASA Astrophysics Data System (ADS)

Many members of large science collaborations already have specialized grids available to advance their research in the need of getting more computing resources for data analysis. This has forced the Collider Detector at Fermilab (CDF) collaboration to move beyond the usage of dedicated resources and start exploiting Grid resources. Nowadays, CDF experiment is increasingly relying on glidein-based computing pools for data reconstruction. Especially, Monte Carlo production and user data analysis, serving over 400 users by central analysis farm middleware (CAF) on the top of Condor batch system and CDF Grid infrastructure. Condor is designed as distributed architecture and its glidein mechanism of pilot jobs is ideal for abstracting the Grid computing by making a virtual private computing pool. We would like to present the first production use of the generic pilot-based Workload Management System (glideinWMS), which is an implementation of the pilot mechanism based on the Condor distributed infrastructure. CDF Grid computing uses glideinWMS for its data reconstruction on the FNAL campus Grid, user analysis and Monte Carlo production across Open Science Grid (OSG). We review this computing model and setup used including CDF specific configuration within the glideinWMS system which provides powerful scalability and makes Grid computing working like in a local batch environment with ability to handle more than 10000 running jobs at a time.

Zvada, Marian; Benjamin, Doug; Sfiligoi, Igor

2010-04-01

104

7 CFR 905.148 - Reports of special purpose shipments under certificates of privilege.  

Code of Federal Regulations, 2010 CFR

...of privilege. (a) Each handler of citrus shipping under Certificates of Privilege...address of the certified organic Florida citrus fruit grower or growers supplying fruit...the Secretary and the committee that the citrus described shall be distributed in...

2010-01-01

105

45 CFR 60.11 - Reporting adverse actions on clinical privileges.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Reporting adverse actions on clinical privileges...NATIONAL PRACTITIONER DATA BANK FOR ADVERSE INFORMATION ON PHYSICIANS...Information § 60.11 Reporting adverse actions on clinical privileges...license is held, (viii) Drug Enforcement...

2010-10-01

106

32 CFR 634.9 - Suspension or revocation of driving or privately owned vehicle registration privileges.  

Code of Federal Regulations, 2010 CFR

...percent blood alcohol by volume in...for intoxicated driving. (b) Revocation...Revocation of the driving privilege will...and remains in effect upon reassignment. (2) Driving privileges are...to measure the alcohol content in...

2010-07-01

107

75 FR 32743 - Action Affecting Export Privileges; Green Supply, Inc.; Robert Leland Green and William Robert...  

Federal Register 2010, 2011, 2012, 2013, 2014

...DEPARTMENT OF COMMERCE Bureau of Industry and Security Action Affecting Export Privileges; Green Supply, Inc.; Robert Leland Green and William Robert Green; Order Denying Export Privileges In the Matter of: Green Supply, Inc., 3059...

2010-06-09

108

14 CFR 65.104 - Repairman certificate-experimental aircraft builder-Eligibility, privileges and limitations.  

Code of Federal Regulations, 2010 CFR

...Repairman certificate-experimental aircraft builder-Eligibility, privileges and limitations...Repairman certificate—experimental aircraft builder—Eligibility, privileges and limitations...repairman certificate (experimental aircraft builder), an individual must— (1) Be...

2010-01-01

109

36 CFR 1254.50 - Does NARA consider reinstating research privileges?  

Code of Federal Regulations, 2010 CFR

...false Does NARA consider reinstating research privileges? 1254.50 Section 1254...RECORDS AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.50 Does NARA consider reinstating research privileges? (a) You have 30...

2010-07-01

110

36 CFR 1254.50 - Does NARA consider reinstating research privileges?  

Code of Federal Regulations, 2011 CFR

...false Does NARA consider reinstating research privileges? 1254.50 Section 1254...RECORDS AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.50 Does NARA consider reinstating research privileges? (a) You have 30...

2011-07-01

111

36 CFR 1254.48 - When does NARA revoke research privileges?  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false When does NARA revoke research privileges? 1254.48 Section...AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.48 When does NARA revoke research privileges? (a)...

2010-07-01

112

36 CFR 1254.48 - When does NARA revoke research privileges?  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false When does NARA revoke research privileges? 1254.48 Section...AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.48 When does NARA revoke research privileges? (a)...

2011-07-01

113

Working against the Grain: White Privilege in Human Resource Development  

ERIC Educational Resources Information Center

Research demonstrates that white privilege and racism have a direct impact on the success of businesses and the economy (Updegrave, Byrd, and Leuchter, 1989). Furthermore, organizations that are effective in integrating diversity experience increased organizational viability and profitability. Employees' intentions and actions of engaging in the…

Monaghan, Catherine H.

2010-01-01

114

Crete: Endowed by Nature, Privileged by Geography, Threatened by Tourism?  

E-print Network

Crete: Endowed by Nature, Privileged by Geography, Threatened by Tourism? Helen Briassoulis in the Mediterranean and the largest Greek island, is a highly heterogeneous region which has experiencedrapid tourism development since the mid- to late 1960s when the growth in international tourism and broader socioeco- nomic

Zaferatos, Nicholas C.

115

The Impact of Teacher Privileging on Learning Differentiation with Technology.  

ERIC Educational Resources Information Center

Presents a study that examines how two teachers taught differentiation using a hand-held computer algebra system. Finds that students of the teacher who privileged conceptual understanding and student construction of meaning were more able to interpret derivatives. Highlights the fact that within similar overall attainment on student tests, there…

Kendal, Margaret; Stacey, Kaye

2001-01-01

116

Social Workers and Privileged Communication in the Federal Legal System.  

ERIC Educational Resources Information Center

Discusses the implications of Jaffee v. Redmond--a case involving privileged communication between counselor and client--for social workers involved in federal and nonfederal cases, for those who practice with Native Americans, and for those who practice in federal prisons. Discusses the positive and the negative implications of the decision. (RJM)

Alexander, Rudolph, Jr.

1997-01-01

117

Social Privilege, Social Justice, and Group Counseling: An Inquiry  

ERIC Educational Resources Information Center

The construct of social privilege is ubiquitous within the multicultural and social justice literature. However, the group work literature has yet to integrate the construct into group theory, processes, and training. In this article, we review the group literature on multicultural and diversity issues. Also, we examine the multicultural and…

Smith, Lance C.; Shin, Richard Q.

2008-01-01

118

Dynamic Merkle Trees for Verifying Privileges in Sensor Networks  

Microsoft Academic Search

Mobile sinks are already used in static sensor networks to facilitate data collection or network management, but it is possible in such networks for mobile sinks to be compromised and mount various insider attacks. Some schemes have been devised recently to limit the privileges of mobile sinks appropriately, but these are secure only when the number of compromised mobile sinks

Li Zhou; Chinya V. Ravishankar

2006-01-01

119

Increasing Awareness of Group Privilege with College Students  

ERIC Educational Resources Information Center

A qualitative study was conducted with 850 participants in 36 different classes including Child and Family Studies, Human Relations, Aviation, and Community Studies in a university in the Midwest. The study conducted was based on a simulated discrimination exercise to increase awareness of group privilege and preferential treatment among college…

Stark-Rose, Rose M.; Lokken, Jayne M.; Zarghami, Fatemeh

2009-01-01

120

Confidentiality and Privileged Communication. The ACA Legal Series. Volume 6.  

ERIC Educational Resources Information Center

This monograph is designed to offer a pragmatic or applied focus to the ethical and legal dilemmas facing practitioners in the area of confidentiality and privileged communication. First a glossary of terms is presented. Next the historical perspective of confidentiality is discussed, focusing on from what the counselor's professional duty and…

Arthur, Gibbs L., Jr.; Swanson, Carl D.

121

Peeling the Onion: Teaching Critical Literacy with Students of Privilege.  

ERIC Educational Resources Information Center

Describes a teacher who explores her passion for critical literacy by challenging students of privilege to name their identities and disrupt the familiar. Creates a classroom founded on the philosophy that every student needs and deserves to be exposed to critical literacy--reading literature and their own lives with an awareness of systems of…

Foss, Abigail

2002-01-01

122

Awakening to White Privilege and Power in Canada  

ERIC Educational Resources Information Center

In this article two narratives are used to illustrate how self-awareness of "White" as skin colour reveals associated subtle aspects of power and privilege and with that, an ethic of personal and professional responsibility. The narratives connect experience and action with the conceptual framework of a third, liminal space, demonstrating an…

Syed, Khalida Tanvir; Hill, Anne

2011-01-01

123

Automated detection of vulnerabilities in privileged programs by execution monitoring  

Microsoft Academic Search

Presents a method for detecting exploitations of vulnerabilities in privileged programs by monitoring their execution using audit trails, where the monitoring is with respect to specifications of the security-relevant behavior of the programs. Our work is motivated by the intrusion detection paradigm, but is an attempt to avoid ad hoc approaches to codifying misuse behavior. Our approach is based on

Calvin Ko; George Fink; Karl Levitt

1994-01-01

124

Understanding Unearned Privilege: An Experiential Activity for Counseling Students  

ERIC Educational Resources Information Center

The Association for Multicultural Counseling and Development stresses the importance of counselors to develop multicultural competencies that include attitudes, knowledge, and skills. Counselor educators face the challenge of helping their students develop multicultural counseling competence including an awareness of unearned privilege. This…

Cook, Katrina; Lusk, Aisha; Miller, Laura Christina; Dodier, Oscar Esteban; Salazar, Ana M.

2012-01-01

125

Using Hadoop File System and MapReduce in a small/medium Grid site  

NASA Astrophysics Data System (ADS)

Data storage and data access represent the key of CPU-intensive and data-intensive high performance Grid computing. Hadoop is an open-source data processing framework that includes fault-tolerant and scalable distributed data processing model and execution environment, named MapReduce, and distributed File System, named Hadoop distributed File System (HDFS). HDFS was deployed and tested within the Open Science Grid (OSG) middleware stack. Efforts have been taken to integrate HDFS with gLite middleware. We have tested the File System thoroughly in order to understand its scalability and fault-tolerance while dealing with small/medium site environment constraints. To benefit entirely from this File System, we made it working in conjunction with Hadoop Job scheduler to optimize the executions of the local physics analysis workflows. The performance of the analysis jobs which used such architecture seems to be promising, making it useful to follow up in the future.

Riahi, H.; Donvito, G.; Fanò, L.; Fasi, M.; Marzulli, G.; Spiga, D.; Valentini, A.

2012-12-01

126

Do windows users follow the principle of least privilege?: investigating user account control practices  

Microsoft Academic Search

The principle of least privilege requires that users and their programs be granted the most restrictive set of privileges possible to perform required tasks in order to limit the damages caused by security incidents. Low-privileged user accounts (LUA) and user account control (UAC) in Windows Vista and Windows 7 are two practical implementations of this principle. To be successful, however,

Sara Motiee; Kirstie Hawkey; Konstantin Beznosov

2010-01-01

127

Difficult Dialogues, Privilege and Social Justice: Uses of the Privileged Identity Exploration (PIE) Model in Student Affairs Practice  

ERIC Educational Resources Information Center

This article will introduce the Privileged Identity Exploration (PIE) Model. This model identifies eight (8) defense modes associated with behaviors individuals display when engaged in difficult dialogues about social justice issues. Implications for the model and ways it can be used to assist facilitators as they engage participants in…

Watt, Sherry K.

2007-01-01

128

Speaking of privilege: family therapy educators' journeys toward awareness and compassionate action.  

PubMed

This study explores how family therapy educators from privileged social locations understand issues of privilege and the process by which they integrate their personal and professional journeys to create and model equity in family therapy training and professional development. These educators developed awareness about issues of privilege and oppression and owned their privilege. Increased awareness involved personal struggles with guilt and managing internalized voices of prejudice that are constantly reinforced in society. These educators adopted a stance of action and accountability for equity. We hypothesize that the process leading to owning one's privilege involves the ability to be compassionate for others' suffering and one's own limitations. PMID:22690858

Hernandez-Wolfe, Pilar; McDowell, Teresa

2012-06-01

129

Influence of Immune Privilege on Ocular Tumor Development  

PubMed Central

Mechanisms that maintain ocular immune privilege may contribute to ocular tumor progression by inhibiting tumoricidal immune responses. Consistent with that notion are observations from transplantable tumor models in mice demonstrating that the tumoricidal activity of CD8+ cytolytic T lymphocytes (CTL) may be inhibited directly by interfering with CTL effector function in the eye or indirectly by abrogating the effector function of CD8+ T cell-activated intratumoral macrophages that are critical for ocular tumor rejection. In addition, epigenetic gene regulation by factors within the ocular tumor environment favors the generation of tumor variants that are resistant to CD8+ CTL. Intratumoral macrophages may be essential for eliminating these variants because, unlike CTL, their tumoricidal activity is nonspecific. Hence, the inhibition of macrophage effector function within the eye, presumably to preserve immune privilege by minimizing ocular immunopathology, may hasten the outgrowth of tumor escape variants which contributes to ocular tumor progression. PMID:20370332

McKenna, Kyle C.; Chen, Peter W.

2011-01-01

130

A theory of biological relativity: no privileged level of causation.  

PubMed

Must higher level biological processes always be derivable from lower level data and mechanisms, as assumed by the idea that an organism is completely defined by its genome? Or are higher level properties necessarily also causes of lower level behaviour, involving actions and interactions both ways? This article uses modelling of the heart, and its experimental basis, to show that downward causation is necessary and that this form of causation can be represented as the influences of initial and boundary conditions on the solutions of the differential equations used to represent the lower level processes. These insights are then generalized. A priori, there is no privileged level of causation. The relations between this form of 'biological relativity' and forms of relativity in physics are discussed. Biological relativity can be seen as an extension of the relativity principle by avoiding the assumption that there is a privileged scale at which biological functions are determined. PMID:23386960

Noble, Denis

2012-02-01

131

A theory of biological relativity: no privileged level of causation  

PubMed Central

Must higher level biological processes always be derivable from lower level data and mechanisms, as assumed by the idea that an organism is completely defined by its genome? Or are higher level properties necessarily also causes of lower level behaviour, involving actions and interactions both ways? This article uses modelling of the heart, and its experimental basis, to show that downward causation is necessary and that this form of causation can be represented as the influences of initial and boundary conditions on the solutions of the differential equations used to represent the lower level processes. These insights are then generalized. A priori, there is no privileged level of causation. The relations between this form of ‘biological relativity’ and forms of relativity in physics are discussed. Biological relativity can be seen as an extension of the relativity principle by avoiding the assumption that there is a privileged scale at which biological functions are determined. PMID:23386960

Noble, Denis

2012-01-01

132

HIGH SCHOOL Special Privilege Registration The High School Special Privileges card is available to area high school students whose research requires  

E-print Network

HIGH SCHOOL Special Privilege Registration The High School Special Privileges card is available to area high school students whose research requires access to the University Libraries' collection. Referral by the high school librarian is required and indicates that the student has exhausted

Dasgupta, Dipankar

133

Grids = Structure.  

ERIC Educational Resources Information Center

Proposes that narrow columns provide a flexible system of organization for designers. Notes that grids serve the content on the pages, help to develop a layout that will clearly direct the reader to information; and prevent visual monotony. Concludes when grid layouts are used, school publications look as good as professional ones. (PM)

Barrington, Linda; Carter, Jacky

2003-01-01

134

Extraction of Inter-procedural Simple Role Privilege Models from PHP Code  

Microsoft Academic Search

Web based applications may suffer from role privilege violations duet vulnerabilities in the source code. This paper presents an original algorithm to extract simple Boolean role privilege models from an inter-procedural perspective of PHP source code.Extracted models can be verified against role privilege violations,using model checkers. The proposed extraction approach has been preliminarily evaluated on a small PHP open source

Dominic Letarte; Ettore Merlo

2009-01-01

135

On Privileging the Role of Gaze in Infant Social Cognition  

PubMed Central

Theories of early social-cognitive development privilege infants' use of gaze as a cue to others' attention and intentions. Mutual gaze is assumed to indicate social engagement, gaze following is believed to index understanding of others' attention, and gaze alternation (between an object and a caregiver) is used to assess joint attention. This article discusses other cues (e.g., vocal and postural) on which children in other cultures and atypically developing children in Western cultures probably rely. It proposes that it is quite likely that typically developing children in Western cultures also use nongaze cues—in conjunction with gaze—in their everyday interactions with others.

Akhtar, Nameera; Gernsbacher, Morton Ann

2014-01-01

136

Scalability of network facing services used in the Open Science Grid  

NASA Astrophysics Data System (ADS)

The Open Science Grid relies on several network facing services to deliver resources to its users. The major services are the Compute Elements, Storage Elements, Workload Management Systems and Information Systems. All of these services are exposed to traffic coming from all over the world in an unmanaged way, so it is very important to know how they behave at different levels of load. In this paper we present the methodology and the results of scalability and reliability tests performed by OSG on some of the above services. The major services being tested are the Condor batch system, the GT2, GRAM5 and CREAM CEs, and the BeStMan SRM SE.

Sfiligoi, I.; Pi, H.; Würthwein, F.; Theissen, C.; Dost, J. M.

2011-12-01

137

An empirical analysis of White privilege, social position and health.  

PubMed

Accumulated evidence has demonstrated that social position matters for health. Those with greater socioeconomic resources and greater perceived standing in the social hierarchy have better health than those with fewer resources and lower perceived standing. Race is another salient axis by which health is stratified in the U.S., but few studies have examined the benefit of White privilege. In this paper, we investigated how perceptions of inequality and subjective and objective social status affected the health and well-being of N = 630 White residents in three Boston neighborhoods lying on a social gradient differentiated by race, ethnicity, income and prestige. Outcomes were self-rated health, dental health, and happiness. Results suggested that: neighborhood residence was not associated with health after controlling for individual level factors (e.g., positive ratings of the neighborhood, education level); objective measures of socioeconomic status were associated with better self-reported and dental health, but subjective assessments of social position were more strongly associated; and White residents living in the two wealthiest neighborhoods, and who perceived Black families as welcome in their neighborhoods enjoyed better health than those who believed them to be less welcome. However, those who lived in the least wealthy and most diverse neighborhood fared worse when reporting Black families to be welcome. These results suggest that White privilege and relative social position interact to shape health outcomes. PMID:25014267

Kwate, Naa Oyo A; Goodman, Melody S

2014-09-01

138

The Open Science Grid - Support for Multi-Disciplinary Team Science - the Adolescent Years  

NASA Astrophysics Data System (ADS)

As it enters adolescence the Open Science Grid (OSG) is bringing a maturing fabric of Distributed High Throughput Computing (DHTC) services that supports an expanding HEP community to an increasingly diverse spectrum of domain scientists. Working closely with researchers on campuses throughout the US and in collaboration with national cyberinfrastructure initiatives, we transform their computing environment through new concepts, advanced tools and deep experience. We discuss examples of these including: the pilot-job overlay concepts and technologies now in use throughout OSG and delivering 1.4 Million CPU hours/day; the role of campus infrastructures- built out from concepts of sharing across multiple local faculty clusters (made good use of already by many of the HEP Tier-2 sites in the US); the work towards the use of clouds and access to high throughput parallel (multi-core and GPU) compute resources; and the progress we are making towards meeting the data management and access needs of non-HEP communities with general tools derived from the experience of the parochial tools in HEP (integration of Globus Online, prototyping with IRODS, investigations into Wide Area Lustre). We will also review our activities and experiences as HTC Service Provider to the recently awarded NSF XD XSEDE project, the evolution of the US NSF TeraGrid project, and how we are extending the reach of HTC through this activity to the increasingly broad national cyberinfrastructure. We believe that a coordinated view of the HPC and HTC resources in the US will further expand their impact on scientific discovery.

Bauerdick, Lothar; Ernst, Michael; Fraser, Dan; Livny, Miron; Pordes, Ruth; Sehgal, Chander; Würthwein, Frank; Open Science Grid

2012-12-01

139

Multiples Grid  

NSDL National Science Digital Library

This problem reinforces a learner's understanding of factors and multiples. Students are presented with the hundred grid or parts of the grid where specific numbers have been shaded and must find out which factors have been chosen in order to produce the shading. A link to a spreadsheet which shades the squares according to the chosen factors, can be used by students to check their hypotheses. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, and ideas for extension and support.

140

Talking "Privilege": Barriers to Musical Attainment in Adolescents' Talk of Musical Role Models  

ERIC Educational Resources Information Center

Using a discursive approach, this study explores the ways that adolescents construct the notion of social status and "being privileged" through their talk about musician role models. Drawing on social identity theory (see Tajfel, 1978), we examined how adolescents moved between the relational "in" and "out" groups of being privileged versus being…

Ivaldi, Antonia; O'Neill, Susan

2009-01-01

141

Privileges and Immunities: a Reference Guide to the United States Constitution  

Microsoft Academic Search

The privileges and immunities clauses in the U.S. Constitution forbids one state from discriminating against citizens of another state with respect to privileges and immunities that state affords its own citizens. Of course, the history, interpretation, and rulings on Article IV and the Fourteenth Amendment are much more nuanced and controversial. Bogen details the origins and development of the concept

David S. Bogen

2003-01-01

142

Inducible immune regulation following autoimmune disease in the immune-privileged eye  

Microsoft Academic Search

The immune-privileged eye has the po- tential to induce regulatory immunity along with local mechanisms of immunosuppression. Rodent models of human autoimmune uveoretinitis (exper- imental autoimmune uveoretinitis (EAU)) recover without spontaneous recurrence of uveitis, which differs from uveitis in some humans. This raises the possibility that the mechanism of immune privilege in the rodent eye can reimpose itself during auto-

Nobuyoshi Kitaichi; Kenichi Namba; Andrew W. Taylor

2004-01-01

143

Civic Orientation in Cultures of Privilege: What Role Do Schools Play?  

ERIC Educational Resources Information Center

The context of privilege provides unique opportunities and challenges for youth civic development. A mixed-method approach was used to examine links between school-based community service, school climate, and civic orientation among students in cultures of privilege. Surveys completed by students (N = 376) at two private high schools--one with an…

Ballard, Parissa J.; Caccavale, Laura; Buchanan, Christy M.

2015-01-01

144

13 CFR 103.3 - May SBA suspend or revoke an Agent's privilege?  

Code of Federal Regulations, 2010 CFR

...suspend or revoke the privilege of any Agent to conduct business with SBA. Part 134 of this chapter states the procedures for appealing the decision to suspend or revoke the privilege. The suspension or revocation remains in effect during the pendency of any...

2010-01-01

145

30 CFR 552.7 - Privileged and proprietary data and information to be made available to affected States.  

Code of Federal Regulations, 2013 CFR

...Privileged and proprietary data and information to be made available to affected States...CONTINENTAL SHELF (OCS) OIL AND GAS INFORMATION PROGRAM § 552.7 Privileged and proprietary data and information to be made available to affected...

2013-07-01

146

50 CFR 300.206 - Denial of port privileges and import restrictions on fish or fish products.  

Code of Federal Regulations, 2014 CFR

... Denial of port privileges and import restrictions on fish or fish products. 300.206 Section 300.206 Wildlife... Denial of port privileges and import restrictions on fish or fish products. (a) Scope of...

2014-10-01

147

50 CFR 300.205 - Denial of port privileges and import restrictions on fish or fish products.  

Code of Federal Regulations, 2012 CFR

... Denial of port privileges and import restrictions on fish or fish products. 300.205 Section 300.205 Wildlife... Denial of port privileges and import restrictions on fish or fish products. (a) Scope of...

2012-10-01

148

50 CFR 300.206 - Denial of port privileges and import restrictions on fish or fish products.  

Code of Federal Regulations, 2013 CFR

... Denial of port privileges and import restrictions on fish or fish products. 300.206 Section 300.206 Wildlife... Denial of port privileges and import restrictions on fish or fish products. (a) Scope of...

2013-10-01

149

50 CFR 300.205 - Denial of port privileges and import restrictions on fish or fish products.  

Code of Federal Regulations, 2011 CFR

... Denial of port privileges and import restrictions on fish or fish products. 300.205 Section 300.205 Wildlife... Denial of port privileges and import restrictions on fish or fish products. (a) Scope of...

2011-10-01

150

Novel aspects of corneal angiogenic and lymphangiogenic privilege  

PubMed Central

In this article, we provide the results of experimental studies demonstrating that corneal avascularity is an active process involving the production of anti-angiogenic factors, which counterbalance the proangiogenic/lymphangiogenic factors that are upregulated during wound healing. We also summarize pertinent published reports regarding corneal neovascularization (NV), corneal lymphangiogenesis and corneal angiogenic/lymphangiogenic privilege. We outline the clinical causes of corneal NV, and discuss the angiogenic proteins (VEGF and bFGF) and angiogenesis regulatory proteins. We also describe the role of matrix metalloproteinases MMP-2, -7, and MT1-MMP, anti-angiogenic factors, and lymphangiogenic regulatory proteins during corneal wound healing. Established and potential new therapies for the treatment of corneal neovascularization are also discussed. PMID:20100589

Ellenberg, David; Azar, Dimitri T.; Hallak, Joelle A.; Tobaigy, Faisal; Han, Kyu Yeon; Jain, Sandeep; Zhou, Zhongjun; Chang, Jin-Hong

2013-01-01

151

Locating privileged spreaders on an online social network  

NASA Astrophysics Data System (ADS)

Social media have provided plentiful evidence of their capacity for information diffusion. Fads and rumors but also social unrest and riots travel fast and affect large fractions of the population participating in online social networks (OSNs). This has spurred much research regarding the mechanisms that underlie social contagion, and also who (if any) can unleash system-wide information dissemination. Access to real data, both regarding topology—the network of friendships—and dynamics—the actual way in which OSNs users interact, is crucial to decipher how the former facilitates the latter's success, understood as efficiency in information spreading. With the quantitative analysis that stems from complex network theory, we discuss who (and why) has privileged spreading capabilities when it comes to information diffusion. This is done considering the evolution of an episode of political protest which took place in Spain, spanning one month in 2011.

Borge-Holthoefer, Javier; Rivero, Alejandro; Moreno, Yamir

2012-06-01

152

The privileged status of locality in consonant harmony  

PubMed Central

While the vast majority of linguistic processes apply locally, consonant harmony appears to be an exception. In this phonological process, consonants share the same value of a phonological feature, such as secondary place of articulation. In sibilant harmony, [s] and [?] (‘sh’) alternate such that if a word contains the sound [?], all [s] sounds become [?]. This can apply locally as a first-order or non-locally as a second-order pattern. In the first-order case, no consonants intervene between the two sibilants (e.g., [pisasu], [pi?a?u]). In second-order case, a consonant may intervene (e.g., [sipasu], [?ipa?u]). The fact that there are languages that allow second-order non-local agreement of consonant features has led some to question whether locality constraints apply to consonant harmony. This paper presents the results from two artificial grammar learning experiments that demonstrate the privileged role of locality constraints, even in patterns that allow second-order non-local interactions. In Experiment 1, we show that learners do not extend first-order non-local relationships in consonant harmony to second-order nonlocal relationships. In Experiment 2, we show that learners will extend a consonant harmony pattern with second-order long distance relationships to a consonant harmony with first-order long distance relationships. Because second-order non-local application implies first-order non-local application, but first-order non-local application does not imply second-order non-local application, we establish that local constraints are privileged even in consonant harmony. PMID:21686094

Finley, Sara

2011-01-01

153

Grid Game  

NSDL National Science Digital Library

With this interactive Shockwave applet students practice recognizing various types of numbers, including factors, multiples, and prime numbers. Each level presents several grids of numbers, each with a specific rule. Users select all numbers in the grid that satisfy the rule. Level 1 involves parity (odd/even) and multiplication facts of 2, 3, 4, 5 and 10. Level 2 includes multiplication facts up to 10 x 10, primes, and square numbers. Level 3 also covers powers of 2, triangle numbers less than 100, and lower cube numbers. A Key Ideas window explains each type of number. Cross Number puzzle printouts are available for further practice.

2000-01-01

154

GridShib and PERMIS Integration Chadwick, D.W., Novikov, A., Otenko, O., University of Kent, United Kingdom  

E-print Network

cross-organisation identity federation and PERMIS policy-driven role-based access control and represents concludes with the lessons learned and plans for the future. Key words Grid computing, Privilege Management on the user's identity. This will allow for fine-grained access control and the necessary level

Kent, University of

155

Therapies based on principles of ocular immune privilege.  

PubMed

Anterior chamber (AC)-associated immune deviation (ACAID) is a form of ocularderived peripheral tolerance that helps to maintain the immune privilege of the eye by suppressing both the priming and elicitation of adaptive immune responses. ACAID is known to facilitate the survival of corneal grafts and suppression autoimmune uveitis in the eye. Intravenous inoculation of in vitro generated ACAID tolerance-inducing antigen presenting cells (APCs) treated with transforming growth factor-Beta2 (tolerogenic APCs) generates the kind of T regulatory cells found in in vivo ACAID when antigen is inoculated into the AC of the eye. Here, we review the application of peripheral tolerance induction by ACAID with either AC inoculation or in vitro generated tolerogenic ACAID-APCs in suppressing ongoing Th1- and Th2-mediated immune pathogenesis in naive and presensitized hosts. Transfer of tolerogenic APCs has suppressed antigen-specific immune inflammation in animal models of experimental autoimmune encephalomyelitis, hapten immune pulmonary interstitial fibrosis, and ovalbumin-induced allergic pulmonary inflammation. The possibility of immune therapy by in vitro generated ACAID-like tolerogenic APCs in humans is discussed. PMID:17264506

Zhang-Hoover, Jie; Stein-Streilein, Joan

2007-01-01

156

32 CFR 727.8 - Confidential and privileged character of service provided.  

Code of Federal Regulations, 2010 CFR

...privileged in the legal sense as outlined in the Code of Professional Responsibility, as opposed to confidential in the military...client by name or any other particular, such as social security number, shall be extracted from...

2010-07-01

157

46 CFR 68.33 - Privileges of a limited coastwise endorsement.  

Code of Federal Regulations, 2013 CFR

...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

2013-10-01

158

46 CFR 68.33 - Privileges of a limited coastwise endorsement.  

Code of Federal Regulations, 2011 CFR

...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

2011-10-01

159

46 CFR 68.33 - Privileges of a limited coastwise endorsement.  

Code of Federal Regulations, 2012 CFR

...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

2012-10-01

160

46 CFR 68.33 - Privileges of a limited coastwise endorsement.  

Code of Federal Regulations, 2010 CFR

...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

2010-10-01

161

42 CFR 3.204 - Privilege of patient safety work product.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Privilege of patient safety work product. 3.204 Section 3.204...HEALTH AND HUMAN SERVICES GENERAL PROVISIONS PATIENT SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and...

2010-10-01

162

42 CFR 3.204 - Privilege of patient safety work product.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Privilege of patient safety work product. 3.204 Section 3.204...HEALTH AND HUMAN SERVICES GENERAL PROVISIONS PATIENT SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and...

2014-10-01

163

Safe Grid  

NASA Technical Reports Server (NTRS)

The biggest users of GRID technologies came from the science and technology communities. These consist of government, industry and academia (national and international). The NASA GRID is moving into a higher technology readiness level (TRL) today; and as a joint effort among these leaders within government, academia, and industry, the NASA GRID plans to extend availability to enable scientists and engineers across these geographical boundaries collaborate to solve important problems facing the world in the 21 st century. In order to enable NASA programs and missions to use IPG resources for program and mission design, the IPG capabilities needs to be accessible from inside the NASA center networks. However, because different NASA centers maintain different security domains, the GRID penetration across different firewalls is a concern for center security people. This is the reason why some IPG resources are been separated from the NASA center network. Also, because of the center network security and ITAR concerns, the NASA IPG resource owner may not have full control over who can access remotely from outside the NASA center. In order to obtain organizational approval for secured remote access, the IPG infrastructure needs to be adapted to work with the NASA business process. Improvements need to be made before the IPG can be used for NASA program and mission development. The Secured Advanced Federated Environment (SAFE) technology is designed to provide federated security across NASA center and NASA partner's security domains. Instead of one giant center firewall which can be difficult to modify for different GRID applications, the SAFE "micro security domain" provide large number of professionally managed "micro firewalls" that can allow NASA centers to accept remote IPG access without the worry of damaging other center resources. The SAFE policy-driven capability-based federated security mechanism can enable joint organizational and resource owner approved remote access from outside of NASA centers. A SAFE enabled IPG can enable IPG capabilities to be available to NASA mission design teams across different NASA center and partner company firewalls. This paper will first discuss some of the potential security issues for IPG to work across NASA center firewalls. We will then present the SAFE federated security model. Finally we will present the concept of the architecture of a SAFE enabled IPG and how it can benefit NASA mission development.

Chow, Edward T.; Stewart, Helen; Korsmeyer, David (Technical Monitor)

2003-01-01

164

FUTURE POWER GRID INITIATIVE GridOPTICSTM  

E-print Network

FUTURE POWER GRID INITIATIVE GridOPTICSTM : A Software Framework for Power System Operations technologies needed to support the operations and planning of the future power grid » provide a framework for integrating novel new operations and planning technologies with external power grid systems, including energy

165

Immune privilege persists in eyes with extreme inflammation induced by intravitreal LPS.  

PubMed

Since immune privilege is believed to exist in the eye in order to suppress sight-destroying inflammation, we wondered whether eyes with intraocular inflammation retain the immune privileged state. Intraocular inflammation was induced by injection of lipopolysaccharide (LPS) into the vitreous cavity of BALB/c mouse eyes, which showed a peak in intensity at approximately 9 h. At this time point, inflamed eyes were examined for their capacity to afford immune privilege to injected allogeneic tumor cells, and to promote anterior chamber-associated immune deviation (ACAID) to antigens injected locally. In addition, aqueous humor (AqH) harvested from inflamed eyes was tested for its ability to suppress T cell activation. Surprisingly, eyes with acute, intense intraocular inflammation allowed allogeneic tumor cells to form progressively growing tumors, and these same eyes promoted ACAID. Moreover, AqH harvested from inflamed eyes strongly inhibited T cell activation. We conclude that the type of extreme, intraocular inflammation evoked by intravitreally injected LPS fails to abolish immune privilege in the eye. These findings are discussed in light of the effects of other types of inflammation on the integrity of ocular immune privilege, and with respect to the capacity of the eye to maintain immune privilege by more than one mechanism. PMID:11745402

Mo, J S; Streilein, J W

2001-12-01

166

Commodity Grid Kit  

NSDL National Science Digital Library

Commodity Grid (CoG) Kits allow Grid users, Grid application developers, and Grid administrators to use, program, and administer Grids from a higher-level framework. The Java and Python CoG Kits are good examples. These kits allow for easy and rapid Grid application development. They encourage collaborative code reuse and avoid the duplication of effort among problem solving environments, science portals, Grid middleware, and collaboratory pilots.

Von Laszewski, Gregor

167

The Grid  

NSDL National Science Digital Library

The class forms a "Presidential Task Force" for a week, empowered by the president to find answers and make recommendations concerning the future of the national power grid. Task force members conduct daily debriefings with their research team and prepare a report and presentation of their findings for the president, using an actual policy document as a guide. Although this activity is geared towards fifth-grade and older students and Internet research capabilities are required, some portions may be appropriate for younger students.

2014-09-18

168

Latanoprost does not affect immune privilege of corneal allografts.  

PubMed

The present study determined whether topical latanoprost, a prostaglandin (PG) F(2alpha) analog, influences the induction of anterior chamber-associated immune deviation (ACAID), corneal neovascularization (NV) or survival of corneal allografts in mice. BALB/c mice received topical latanoprost or PGE(2) once or multiple times daily starting 4 weeks prior to or the day of anterior chamber injection of C57BL/6 splenocytes. Induction of allo-specific ACAID was assessed by ear challenge with C57BL/6 splenocytes 1 week after subcutaneous immunization. In a separate experiment, orthotopic corneal transplantation was performed using C57BL/6 mice as donors and BALB/c mice as recipients. Recipients were randomized in a masked fashion to receive topical latanoprost or PGE(2). Graft fate was assessed clinically under surgical microscopy. Presence of MHC class II(+) CD11c(+) or CD11b(+) cells in normal BALB/c mouse eyes following latanoprost or PGE(2) administration was assessed immunohistochemically. Control mice received topical 20% dimethyl sulfoxide or no treatment. Allo-specific ACAID was induced after 2 or 6 weeks of once daily treatment with latanoprost, and was induced even after 6 weeks of multiple treatments with latanoprost. Conversely, mice receiving PGE(2) failed to develop ACAID. Opacity and corneal NV scores for allografts treated with latanoprost were statistically indistinguishable from those for control allografts (p>0.05), whereas all allografts treated with PGE(2) were rejected. Opacity and NV scores were significantly higher in these allografts than in controls (p<0.05). A number of MHC class II(+) CD11c(+) cells were present in the central cornea after PGE(2) treatment. Topical application of latanoprost does not influence induction of ACAID or graft outcomes including opacity and NV, whereas PGE(2) does. Immune privilege of corneal allograft is maintained after topical latanoprost application in mice. PMID:18187130

Wang, Mingcong; Kitahara, Yuki; Yoshida, Atsushi; Hori, Junko

2008-02-01

169

GridMan: A grid manipulation system  

NASA Technical Reports Server (NTRS)

GridMan is an interactive grid manipulation system. It operates on grids to produce new grids which conform to user demands. The input grids are not constrained to come from any particular source. They may be generated by algebraic methods, elliptic methods, hyperbolic methods, parabolic methods, or some combination of methods. The methods are included in the various available structured grid generation codes. These codes perform the basic assembly function for the various elements of the initial grid. For block structured grids, the assembly can be quite complex due to a large number of clock corners, edges, and faces for which various connections and orientations must be properly identified. The grid generation codes are distinguished among themselves by their balance between interactive and automatic actions and by their modest variations in control. The basic form of GridMan provides a much more substantial level of grid control and will take its input from any of the structured grid generation codes. The communication link to the outside codes is a data file which contains the grid or section of grid.

Eiseman, Peter R.; Wang, Zhu

1992-01-01

170

Cluster and Grid Computing  

NSDL National Science Digital Library

* Overview of grid computing, * Basic Internet technologies: IP, HTTP, UDP, TCP, * Security, * Web Services and Enabling technologies, * Grid service concepts,* Resource Management, * Discovery and Information Services, * Parallel programming techniques suitable for a Grid, * Cluster computing and basic message passing techniques

Apon, Amy

171

Grid und Cloud Computing.  

E-print Network

??In dieser Arbeit werden die theoretischen Konzepte und mögliche praktische Anwendungsmöglichkeiten von Grid- und Cloud-Computing dargestellt. Als erster Teil der Arbeit wird zuerst auf Grids… (more)

Shahi Barogh, Bahareh

2010-01-01

172

Data Grid Management Systems  

NASA Technical Reports Server (NTRS)

The "Grid" is an emerging infrastructure for coordinating access across autonomous organizations to distributed, heterogeneous computation and data resources. Data grids are being built around the world as the next generation data handling systems for sharing, publishing, and preserving data residing on storage systems located in multiple administrative domains. A data grid provides logical namespaces for users, digital entities and storage resources to create persistent identifiers for controlling access, enabling discovery, and managing wide area latencies. This paper introduces data grids and describes data grid use cases. The relevance of data grids to digital libraries and persistent archives is demonstrated, and research issues in data grids and grid dataflow management systems are discussed.

Moore, Reagan W.; Jagatheesan, Arun; Rajasekar, Arcot; Wan, Michael; Schroeder, Wayne

2004-01-01

173

GridDaen: A Data Grid Engine  

Microsoft Academic Search

The volume of datasets in scie ntific computing domain is increasing ex- plosively and data is becoming the center of scientific computing. Data Grid is an emerging technology to provide uniform access and management of the large scale distributed scientific datasets. In this paper, the GridDaen system, a new Data Grid middleware, which provides uniform APIs and GUI to access

Nong Xiao; Dongsheng Li; Wei Fu; Bin Huang; Xicheng Lu

2003-01-01

174

The privileged normalization of marijuana use - an analysis of Canadian newspaper reporting, 1997-2007.  

PubMed

The objective of this study was to systematically examine predominant themes within mainstream media reporting about marijuana use in Canada. To ascertain the themes present in major Canadian newspaper reports, a sample (N = 1999) of articles published between 1997 and 2007 was analyzed. Drawing from Manning's theory of the symbolic framing of drug use within media, it is argued that a discourse of 'privileged normalization' informs portrayals of marijuana use and descriptions of the drug's users. Privileged normalization implies that marijuana use can be acceptable for some people at particular times and places, while its use by those without power and status is routinely vilified and linked to deviant behavior. The privileged normalization of marijuana by the media has important health policy implications in light of continued debate regarding the merits of decriminalization or legalization and the need for public health and harm reduction approaches to illicit drug use. PMID:24574580

Haines-Saah, Rebecca J; Johnson, Joy L; Repta, Robin; Ostry, Aleck; Young, Mary Lynn; Shoveller, Jeannie; Sawatzky, Richard; Greaves, Lorraine; Ratner, Pamela A

2014-03-01

175

The privileged normalization of marijuana use – an analysis of Canadian newspaper reporting, 1997–2007  

PubMed Central

The objective of this study was to systematically examine predominant themes within mainstream media reporting about marijuana use in Canada. To ascertain the themes present in major Canadian newspaper reports, a sample (N = 1999) of articles published between 1997 and 2007 was analyzed. Drawing from Manning's theory of the symbolic framing of drug use within media, it is argued that a discourse of ‘privileged normalization’ informs portrayals of marijuana use and descriptions of the drug's users. Privileged normalization implies that marijuana use can be acceptable for some people at particular times and places, while its use by those without power and status is routinely vilified and linked to deviant behavior. The privileged normalization of marijuana by the media has important health policy implications in light of continued debate regarding the merits of decriminalization or legalization and the need for public health and harm reduction approaches to illicit drug use. PMID:24574580

Haines-Saah, Rebecca J.; Johnson, Joy L.; Repta, Robin; Ostry, Aleck; Young, Mary Lynn; Shoveller, Jeannie; Sawatzky, Richard; Greaves, Lorraine; Ratner, Pamela A.

2013-01-01

176

RBAC Driven Least Privilege Architecture For Control Systems  

SciTech Connect

The concept of role based access control (RBAC) within the IT environment has been studied by researchers and was supported by NIST (circa 1992). This earlier work highlighted the benefits of RBAC which include reduced administrative workload and policies which are easier to analyze and apply. The goals of this research were to expand the application of RBAC in the following ways. • Apply RBAC to the control systems environment: The typical RBAC model within the IT environment is used to control a user’s access to files. Within the control system environment files are replaced with measurement (e.g., temperature) and control (e.g. valve) points organized as a hierarchy of control assets (e.g. a boiler, compressor, refinery unit). Control points have parameters (e.g., high alarm limit, set point, etc.) associated with them. The RBAC model is extended to support access to points and their parameters based upon roles while at the same time allowing permissions for the points to be defined at the asset level or point level directly. In addition, centralized policy administration with distributed access enforcement mechanisms was developed to support the distributed architecture of distributed control systems and SCADA. • Extend the RBAC model to include access control for software and devices: The established RBAC approach is to assign users to roles. This work extends that notion by first breaking the control system down into three layers 1) users, 2) software and 3) devices. An RBAC model is then created for each of these three layers. The result is that RBAC can be used to define machine-to-machine policy enforced via the IP security (IPsec) protocol. This highlights the potential to use RBAC for machine-to-machine connectivity within the internet of things. • Enable dynamic policy based upon the operating mode of the system: The IT environment is generally static with respect to policy. However, large cyber physical systems such as industrial controls have various operating modes (start-up, normal operation, emergency, shut-down and maintenance are typical). The policy enforcement architecture must be able to support changes in access permissions as the mode of the control system changes. For example an operator’s role may not allow the operator to shut down a pump during “normal operation” but that same operator role may be given permission to shut down the pump if the refinery transitions to “emergency” mode. The effectiveness of the approach was validated by applying it to the Experion Process Knowledge System. This is a large commercial industrial control system often used to control oil refineries and other assets within the oil and gas sector. As a by-product, other industries using Experion (Pharmaceuticals, Specialty Chemicals, etc.) also benefit from increased security. Policies representative of those that would be used within an oil refinery were created and validated against the RBAC model as implemented in the underlying SQL database. The administration of policy is simplified which in turn makes it practical for security administrators to specify policies which enforce least privilege. The result is a qualitative reduction in risk. The benefits of the enhanced RBAC model are clear and as a result. Honeywell is incorporating portions of the RBAC research into the 2014 release of Experion.

Hull, Julie; Markham, Mark

2014-01-25

177

Privileged to Educate: Katharine Drexel and Catholic Social Teaching--An Embodied Pedagogy  

ERIC Educational Resources Information Center

Katharine Drexel was an important educator who taught profound lessons to the Roman Catholic Church and American society about the responsibility of privilege and the irresponsibility of prejudice. As a professed nun dedicated to the education of Black and Native Americans, she taught both intentionally and by example. Religious educators, seeking…

Lipperini, Patricia T.

2013-01-01

178

Muscle satellite cells and endothelial cells: close neighbours and privileged partners.  

E-print Network

of capillary density, including amyopathic dermatomyositis, a unique condition in which muscle capillary loss1 Muscle satellite cells and endothelial cells: close neighbours and privileged partners. Christo5GFP-P/+ ) allowing direct muscle satellite cell (SC) visualization indicate that, in addition

Paris-Sud XI, Université de

179

An Immunologically Privileged Retinal Antigen Elicits Tolerance: Major Role for Central Selection Mechanisms  

Microsoft Academic Search

Immunologically privileged retinal antigens can serve as targets of experimental autoimmune uveitis (EAU), a model for human uveitis. The tolerance status of susceptible strains, whose target antigen is not expressed in the thymus at detectable levels, is unclear. Here, we address this issue directly by analyzing the consequences of genetic deficiency versus sufficiency of a uveitogenic retinal antigen, interphotoreceptor retinoid-binding

Dody Avichezer; Rafael S. Grajewski; Chi-Chao Chan; Mary J. Mattapallil; Phyllis B. Silver; James A. Raber; Gregory I. Liou; Barbara Wiggert; Giavonni M. Lewis; Larry A. Donoso; Rachel R. Caspi

2003-01-01

180

Raising White Privilege Awareness and Reducing Racial Prejudice: Assessing Diversity Course Effectiveness  

ERIC Educational Resources Information Center

Many diversity courses in psychology originally aimed to reduce student racial bias and raise their awareness of racism. However, quantitative data testing the effectiveness of such courses are lacking. This study assessed a required diversity course's effectiveness in raising awareness of White privilege and racism; increasing support for…

Case, Kim A.

2007-01-01

181

Reeducating Emotions in a Feminist Classroom: Addressing Emotional Resistance from Privileged Students.  

ERIC Educational Resources Information Center

In order to move privileged students from denial and guilt about feminist issues to constructive anger, educators must first teach them how their own emotional response can cloud their perceptions about oppression. Several classroom techniques used for "re-educating emotions" are described and discussed as they are used to teach third-world…

Krouse, Mary Beth

1996-01-01

182

The Gift Economy of Elite Schooling: The Changing Contours and Contradictions of Privileged Benefaction  

ERIC Educational Resources Information Center

Privileged benefaction in elite schools and the moral dilemmas, contradictions and power politics involved are the focus of this paper. The notion of "the gift" provides our analytical lens. We concentrate on two girls' schools--one in South Africa and one in England. These were both built, in various ways, on the British model of…

Kenway, Jane; Fahey, Johannah

2015-01-01

183

Critical Classrooms: Using Artists' Lives to Teach Young Students Social Groups, Power, and Privilege  

ERIC Educational Resources Information Center

This article uses data from a 9-month ethnography in California to illustrate how elementary teacher's decision to reenact Jane Elliott's "A Class Divided" experiment, in conjunction with an artist-centered multicultural curriculum, shifted classroom conversations to a more critical dialogue of social groups, power, and privilege. Data illustrate…

Silva, Janelle M.

2012-01-01

184

The Role of Privilege as Identity in Adolescents' Beliefs about Homelessness, Opportunity, and Inequality  

ERIC Educational Resources Information Center

This mixed methods study investigated the impact of learning about homelessness on the civic development of privileged adolescents. Pre-post surveys, classroom observations, and qualitative interviews revealed that the participating adolescents developed a more complex understanding of the factors that contribute to homelessness; however, this…

Seider, Scott

2011-01-01

185

"With Great Power Comes Great Responsibility": Privileged Students' Conceptions of Justice-Oriented Citizenship  

ERIC Educational Resources Information Center

How do students from privileged communities respond to educational efforts encouraging them to become justice-oriented citizens? Observational and interview data collected during a semester-long case study of eleven high school students in a social studies class at an elite private school reveal four markedly different interpretations of their…

Swalwell, Katy

2013-01-01

186

Privilege of Whiteness: Adolescent Male Students' Resistance to Racism in an Australian Classroom  

ERIC Educational Resources Information Center

In this article I explore links between racism and 'whiteness' within hegemonic masculine discourses. I examine ways in which adolescent male students construct their own identities within a privileged white position. I acknowledge whiteness as a racial issue and interrogate different forms of whiteness through students' narratives. Adolescent…

Hatchell, Helen

2004-01-01

187

43 CFR 5511.2-1 - Free use privilege; cutting by agent.  

Code of Federal Regulations, 2011 CFR

...Interior 2 2011-10-01 2011-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

2011-10-01

188

43 CFR 5511.2-1 - Free use privilege; cutting by agent.  

Code of Federal Regulations, 2013 CFR

...Interior 2 2013-10-01 2013-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

2013-10-01

189

43 CFR 5511.2-1 - Free use privilege; cutting by agent.  

Code of Federal Regulations, 2014 CFR

...Interior 2 2014-10-01 2014-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

2014-10-01

190

43 CFR 5511.2-1 - Free use privilege; cutting by agent.  

Code of Federal Regulations, 2012 CFR

...Interior 2 2012-10-01 2012-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

2012-10-01

191

Rapid and Convenient Synthesis of the 1,4-Dihydropyridine Privileged Structure  

ERIC Educational Resources Information Center

A short, semi-microscale synthesis of two 1,4-dihydropyridine drug analogues via a Hantzsch reaction is described, which is appropriate for a second-year undergraduate organic laboratory. Products are specifically chosen to highlight the biological relevance of this compound type while introducing the notion of a privileged structure.…

Cheung, Lawrence L. W.; Styler, Sarah A.; Dicks, Andrew P.

2010-01-01

192

Reporter's Privilege in the 1980s: Statutory Limits and Judicial Expansion.  

ERIC Educational Resources Information Center

A summary of two countervailing trends in court decisions indicates that journalist's privilege is in a state of change and uncertainty in the early 1980s. Although 26 states have statutory shield laws enabling reporters to conceal their confidential news sources, even in these states reporters are sometimes called upon to reveal confidential…

Overbeck, Wayne

193

Are You Privileged or Oppressed? Students' Conceptions of Themselves and Others  

ERIC Educational Resources Information Center

Given the preponderance of research on students' resistance to multicultural courses, the authors begin to ponder this resistance by exploring students' preconceptions of social justice concepts. They present two mixed-methods studies to examine students' preconceived notions regarding two terms associated with social justice education: privilege

Chizhik, Estella Williams; Chizhik, Alexander Williams

2005-01-01

194

A Review of Parliamentary Privilege with an Approach to Iranian Legal System  

ERIC Educational Resources Information Center

The necessity of immunity of parliament and its Members has led to determine and assure particular privilege in the Constitutions or ordinary laws in the great majority of countries. This legal institution is to provide freedom of speech and to maintain the independence of representatives in the exercise of their duties without undue interference…

Habibzadeh, Mohammad Ja'far; Modjab, Seyed Doraid mousavi

2006-01-01

195

Where Are "Their" Voices? Examining Power and Privilege in a Family Literacy Text  

ERIC Educational Resources Information Center

The purpose of this study was to examine how a family literacy text linked to a large-scale, U.S.-based family literacy program either privileged or disprivileged dominant, Eurocentric literacy practices. More specifically, this study investigated the ways in which the family literacy text: (1) conceptualized literacy; and (2) constructed the role…

Kumar, Tracey

2014-01-01

196

Raising Male Privilege Awareness and Reducing Sexism: An Evaluation of Diversity Courses  

ERIC Educational Resources Information Center

Research examining the impact of women's studies courses provides evidence of student changes such as greater agreement with feminist and egalitarian attitudes, lower prejudice against women, and increased activism. Using a pre- and posttest design, the current studies assess students' awareness of male privilege, prejudice against women, support…

Case, Kim A.

2007-01-01

197

Gaming the System: A Critique of Minors' Privilege to Disaffirm Online Contracts  

E-print Network

627 Gaming the System: A Critique of Minors' Privilege to Disaffirm Online Contracts James Chang attending law school, Mr. Chang worked in the computer gaming industry at Blizzard Entertainment. He holds, video and online games, design and merchandising, banking, and the energy drink market. Ms. Alemi

Barrett, Jeffrey A.

198

May I Speak Frankly? The Attorney-Client Privilege at UC  

E-print Network

communications that would otherwise be required to be disclosed under, e.g.: ­ Public Records Act ­ Information belongs to client--ultimately The Regents 9 #12;EXCEPTIONS · Crime/Fraud: Privilege does not apply "if the services of the lawyer were sought or obtained to enable or aid anyone to commit or plan to commit a crime

Sanders, Seth

199

The role of attitudes toward White privilege and religious beliefs in predicting social justice interest and commitment.  

PubMed

The current study examines links among attitudes toward White privilege, religious beliefs, and social justice interest and commitment for White Christian students. Two distinct patterns of results emerged from a path analysis of 500 White Christian students. First, a willingness to confront White privilege was positively associated with the sanctification of social justice (i.e., attributing spiritual significance to working for social justice) and both were positively associated with social justice interest and commitment. Second, awareness of White privilege was negatively associated with religious conservatism, and religious conservatism was negatively associated with social justice interest. These patterns show that White privilege attitudes directly (i.e., willingness to confront White privilege) and indirectly (i.e., awareness of White privilege through religious conservatism) predicted social justice interest and commitment. Moreover, religious beliefs demonstrated opposite patterns of association with social justice interest and commitment such that the sanctification of social justice positively predicted social justice interest and commitment whereas religious conservatism negatively predicted social justice interest. Overall, findings demonstrate direct and indirect links between White privilege attitudes, religious beliefs, and social justice interest and commitment. Limitations and implications for future community psychology research and collaboration also are discussed. PMID:24473921

Todd, Nathan R; McConnell, Elizabeth A; Suffrin, Rachael L

2014-03-01

200

FUTURE POWER GRID INITIATIVE Future Power Grid  

E-print Network

FUTURE POWER GRID INITIATIVE Future Power Grid Control Paradigm OBJECTIVE This project line power) after contingencies - Coordinate voltage resources to improve voltage security margin) to quickly stabilize system - Modify AGC to only focus on restoring tie line power to scheduled values

201

Grid Computing Portals Lecture  

NSDL National Science Digital Library

Grid Computing Lecture~~Grid portals: purpose, application-based portals, historical examples, GPDK, Gridport, etc., OGCE2/gridsphere portal, portal implementation, portlets, JSR 168, portlet source and deployment files.

Ferner, Clayton; Wilkinson, Barry

2011-07-05

202

Method of grid generation  

DOEpatents

The present invention provides a method of grid generation that uses the geometry of the problem space and the governing relations to generate a grid. The method can generate a grid with minimized discretization errors, and with minimal user interaction. The method of the present invention comprises assigning grid cell locations so that, when the governing relations are discretized using the grid, at least some of the discretization errors are substantially zero. Conventional grid generation is driven by the problem space geometry; grid generation according to the present invention is driven by problem space geometry and by governing relations. The present invention accordingly can provide two significant benefits: more efficient and accurate modeling since discretization errors are minimized, and reduced cost grid generation since less human interaction is required.

Barnette, Daniel W. (Veguita, NM)

2002-01-01

203

Off the Grid  

NSDL National Science Digital Library

Students learn and discuss the advantages and disadvantages of renewable and non-renewable energy sources. They also learn about our nation's electric power grid and what it means for a residential home to be "off the grid."

Integrated Teaching And Learning Program

204

The soft grid  

E-print Network

The grid in architecture is a systematic organization of space. The means that architects use to organize space are, almost by definition, rigid and totalizing. The Cartesian grid, which will serve as the antagonist of the ...

Kardasis, Ari (Ari David)

2011-01-01

205

Smart Power Grid  

NSDL National Science Digital Library

This video segment adapted from NOVA scienceNOW provides an overview of the existing United States power grid, and envisions a smart power grid that would prevent problems, such as blackouts, and reduce energy waste and pollution.

WGBH Educational Foundation

2011-03-31

206

Grid Computing Lecture - Globus 4.0 grid services  

NSDL National Science Digital Library

Grid Computing Lecture~~Globus 4.0 grid services: Using Web services for grid computing, stateful web services, Grid computing standards, Open Grid Services Architecture (OGSA), Web Services Resource Framework (WSRF), programming GT 4.0 grid services, GT 4.0 container.

Ferner, Clayton; Wilkinson, Barry

2011-07-05

207

Interactive grid adaption  

NASA Technical Reports Server (NTRS)

An interactive grid adaption method is developed, discussed and applied to the unsteady flow about an oscillating airfoil. The user is allowed to have direct interaction with the adaption of the grid as well as the solution procedure. Grid points are allowed to adapt simultaneously to several variables. In addition to the theory and results, the hardware and software requirements are discussed.

Abolhassani, Jamshid S.; Everton, Eric L.

1990-01-01

208

Article for "diversity stories in community research and action" facing resistance in waking up to privilege.  

PubMed

This article identifies a challenge brought to us while facilitating a diversity workshop with adults in a school work setting. Our program involved using the video The Color of Fear as a centerpiece of a training to school district staff where the goals were to raise awareness and understanding of race, gender and class issues, increase understanding of power and privilege, and build alliances between people from diverse backgrounds. The challenge came from a white, male participant and involved issues of privilege, the intersections of race, class, and gender, and resistance to addressing diversity matters. Reflections of what worked and didn't work are offered as well as recommendations to other facilitators who will face similar challenges. PMID:16786415

Vasquez, Hugh

2006-06-01

209

A privileged view of NKT cells and peripheral tolerance through the eye.  

PubMed

The eye is an immune-privileged site that uses specialized mechanisms to protect itself from damage and to preserve its visual acuity. Among the mechanisms that contribute to the eye's privileged existence is its ability to induce both local and peripheral tolerance to antigens that may transgress its chambers. Experimentally, antigens that are inoculated into the anterior chamber induce an associated immune deviation of immune lymphocytes from their potential T-helper inflammatory responses to T regulatory cells. The prominent role of a somewhat rare cell called invariant (i)NKT cell in the process of tolerance induced through the anterior chamber-associated immune deviation model, ACAID, has revealed novel biological characteristics for the iNKT cell, as well as novel mechanisms for the induction of tolerance that have not been previously known or considered. The role of the iNKT cell in ACAID and its novel story is discussed in this mini-review. PMID:16019670

Stein-Streilein, Joan

2005-01-01

210

Examining our privileges and oppressions: incorporating an intersectionality paradigm into nursing.  

PubMed

An intersectionality paradigm is a means by which nurses can attend to issues of oppression and privilege within their practice and profession. Intersectionality is introduced as an essential theory to help debunk the hegemony of the 'white, middle class' perspective that often directs nursing research, practice, and education. The values and benefits of using an intersectionality paradigm in nursing are shown through recent research done with Aboriginal women. These findings contribute to an increased understanding of the importance and necessity of attending to the power relations that dominate nursing care encounters and influence the way nurses provide care. By acknowledging and responding to the presence of privilege and oppression and the associated power dynamics within the therapeutic encounter, nursing can strive further in helping to alleviate social injustices and health disparities that arise from unequal power relations. PMID:21281393

Van Herk, Kimberley A; Smith, Dawn; Andrew, Caroline

2011-03-01

211

Grid quality improvement by a grid adaptation technique  

NASA Technical Reports Server (NTRS)

A grid adaptation technique is presented which improves grid quality. The method begins with an assessment of grid quality by defining an appropriate grid quality measure. Then, undesirable grid properties are eliminated by a grid-quality-adaptive grid generation procedure. The same concept has been used for geometry-adaptive and solution-adaptive grid generation. The difference lies in the definition of the grid control sources; here, they are extracted from the distribution of a particular grid property. Several examples are presented to demonstrate the versatility and effectiveness of the method.

Lee, K. D.; Henderson, T. L.; Choo, Y. K.

1991-01-01

212

Navigation in Grid Space with the NAS Grid Benchmarks  

NASA Technical Reports Server (NTRS)

We present a navigational tool for computational grids. The navigational process is based on measuring the grid characteristics with the NAS Grid Benchmarks (NGB) and using the measurements to assign tasks of a grid application to the grid machines. The tool allows the user to explore the grid space and to navigate the execution at a grid application to minimize its turnaround time. We introduce the notion of gridscape as a user view of the grid and show how it can be me assured by NGB, Then we demonstrate how the gridscape can be used with two different schedulers to navigate a grid application through a rudimentary grid.

Frumkin, Michael; Hood, Robert; Biegel, Bryan A. (Technical Monitor)

2002-01-01

213

Which grids are Hamiltonian  

SciTech Connect

A complete grid G/sub m,n/ is a graph having m x n pertices that are connected to form a rectangular lattice in the plane, i.e., all edges of G/sub m,n/ connect vertices along horizontal or vertical lines. A grid is a subgraph of a complete grid. As an illustration, complete grids describe the basic pattern of streets in most cities. This paper examines the existence of Hamiltonian cycles in complete grids and complete grids with one or two vertices removed. It is determined for most values of m,n greater than or equal to 1, which grids G/sub m,n/ - (u) and G/sub m,n/ - (u,v) are Hamiltonian. 12 figures. (RWR)

Hedetniemi, S. M.; Hedetniemi, S. T.; Slater, P. J.

1980-01-01

214

Privileged structures: efficient chemical "navigators" toward unexplored biologically relevant chemical spaces.  

PubMed

In the search for new therapeutic agents for currently incurable diseases, attention has turned to traditionally "undruggable" targets, and collections of drug-like small molecules with high diversity and quality have become a prerequisite for new breakthroughs. To generate such collections, the diversity-oriented synthesis (DOS) strategy was developed, which aims to populate new chemical space with drug-like compounds containing a high degree of molecular diversity. The resulting DOS-derived libraries have been of great value for the discovery of various bioactive small molecules and therapeutic agents, and thus DOS has emerged as an essential tool in chemical biology and drug discovery. However, the key challenge has become how to design and synthesize drug-like small-molecule libraries with improved biological relevancy as well as maximum molecular diversity. This Perspective presents the development of privileged substructure-based DOS (pDOS), an efficient strategy for the construction of polyheterocyclic compound libraries with high biological relevancy. We envisioned the specific interaction of drug-like small molecules with certain biopolymers via the incorporation of privileged substructures into polyheterocyclic core skeletons. The importance of privileged substructures such as benzopyran, pyrimidine, and oxopiperazine in rigid skeletons was clearly demonstrated through the discovery of bioactive small molecules and the subsequent identification of appropriate target biomolecule using a method called "fluorescence difference in two-dimensional gel electrophoresis". Focusing on examples of pDOS-derived bioactive compounds with exceptional specificity, we discuss the capability of privileged structures to serve as chemical "navigators" toward biologically relevant chemical spaces. We also provide an outlook on chemical biology research and drug discovery using biologically relevant compound libraries constructed by pDOS, biology-oriented synthesis, or natural product-inspired DOS. PMID:25310802

Kim, Jonghoon; Kim, Heejun; Park, Seung Bum

2014-10-22

215

Retinal laser burn (RLB) induced neuropathy leads to substance P dependent loss of ocular immune privilege  

PubMed Central

Inflammation in the eye is tightly regulated by multiple mechanisms that together contribute to ocular immune privilege. Many studies have shown that it is very difficult to abrogate the immune privileged mechanism called anterior chamber associated immune deviation (ACAID). Previously, we showed that retinal laser burn (RLB) to one eye abrogated immune privilege (ACAID) bilaterally for an extended period of time. In an effort to explain the inflammation in the non-burned eye, we postulated that neuronal signals initiated inflammation in the contralateral eye. Here, we test the role of substance P, a neuroinflamatory peptide, in RLB-induced loss of ACAID. Histological examination of the retina with and without RLB revealed an increase of the substance P-inducible neurokinin 1 receptor (NK1-R) in the retina of first, the burned eye, and then the contralateral eye. Specific antagonists for NK1-R, given locally with antigen within 24h, but not 3,5, or 7 days post RLB treatment, prevented the bilateral loss of ACAID. Substance P Knockout (KO) mice retained their ability to develop ACAID post RLB. These data support the postulate that substance P transmits early inflammatory signals from the RLB eye to the contralateral eye to induce changes to ocular immune privilege and has a central role in the bilateral loss of ACAID. The possibility is raised that blocking of the substance P pathway with NK1-R antagonists post ocular trauma may prevent unwanted and perhaps extended consequences of trauma-induced inflammation in the eye. PMID:22745377

Lucas, Kenyatta; Karamichos, Dimitris; Mathew, Rose; Zieske, James D.; Stein-Streilein, Joan

2012-01-01

216

Nonradioactive telomerase activity assay by microchip electrophoresis: privileges to the classical gel electrophoresis assay.  

PubMed

The present study accents on the privileges of microchip-based electrophoresis to the conventional gel electrophoresis in separation of telomerase repeat amplification protocol/polymerase chain reaction (PCR) ladder products obtained in telomerase-catalyzed reaction in cancer cells. We try to clarify the interpretation of the results obtained by both electrophoretic procedures and to avoid misinterpretation as a result of PCR-dependent artefacts. PMID:16078194

Zhelev, Zhivko; Bakalova, Rumiana; Ewis, Ashraf; Ohba, Hideki; Ishikawa, Mitsuru; Baba, Yoshinobu

2005-08-01

217

75 FR 71075 - Action Affecting Export Privileges; Anvik Technologies Sdn. Bhd., a/k/a Anvik Technologies; Babak...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affecting Export Privileges; Anvik Technologies Sdn. Bhd., a/k/a Anvik Technologies...k/a Bob Jefferson Anvik Technologies Sdn. Bhd., a/k/a Anvik Technologies Level...1. Anvik Technologies Sdn. Bhd. a/k/a Anvik Technologies....

2010-11-22

218

19 CFR 19.48 - Suspension or revocation of the privilege of operating a container station; hearings.  

Code of Federal Regulations, 2010 CFR

...of the privilege of operating a container station; hearings. 19.48 Section 19.48...TREASURY CUSTOMS WAREHOUSES, CONTAINER STATIONS AND CONTROL OF MERCHANDISE THEREIN Container Stations § 19.48 Suspension or...

2010-04-01

219

Mechanisms of immune privilege in the anterior segment of the eye: what we learn from corneal transplantation.  

PubMed

The eye, like the brain and reproductive organs, possesses inherent immune privilege, and inflammation is self-regulated so as to preserve the organ functions. Studies over the past 30 years have provided insights of the multiple mechanisms of immune privilege. At present, three major lines of thought prevail regarding the molecular mechanisms of immune privilege in the eye: there are (1) anatomical, cellular, and molecular barriers in the eye; (2) eye-derived immunological tolerance, the so-called anterior chamber-associated immune deviation; and (3) immune suppressive intraocular microenvironment. In this review, the mechanisms of immune privilege that have been learned from ocular inflammation animal models, especially corneal transplantation, are described. Roles of new B7 family molecules on local immune regulation within the cornea are also introduced. PMID:20072639

Hori, Junko

2008-12-01

220

Arginine depletion as a mechanism for the immune privilege of corneal allografts  

PubMed Central

The cornea is an immune privileged tissue. Since arginase has been found to modulate T-cell function by depleting arginine, we investigated the expression of arginase in the cornea and its possible role in immune privilege using a murine transplant model. We found that both the endothelium and epithelium of murine corneas express functional arginase I, capable of down-regulating T-cell proliferation in an in vitro culture system. The administration of the specific arginase inhibitor N-hydroxy-nor-l-Arg to recipient mice resulted in an accelerated rejection of allogeneic C57BL/6 (B6) corneal grafts. In contrast, in vivo blockade of arginase activity had no effect in altering the course of rejection of primary skin grafts that express little, if any, arginase. In addition, the inhibition of arginase did not alter systemic T-cell proliferation. These data show that arginase is functional in the cornea and contributes to the immune privilege of the eye, and that modulation of arginase contributes to graft survival. PMID:21805470

Fu, Hongmei; Khan, Adnan; Coe, David; Zaher, Sarah; Chai, Jian-Guo; Kropf, Pascale; Müller, Ingrid; Larkin, Daniel F P; George, Andrew J T

2011-01-01

221

Immune privilege of the CNS is not the consequence of limited antigen sampling.  

PubMed

Central nervous system (CNS) immune privilege is complex, and it is still not understood how CNS antigens are sampled by the peripheral immune system under steady state conditions. To compare antigen sampling from immune-privileged or nonprivileged tissues, we created transgenic mice with oligodendrocyte or gut epithelial cell expression of an EGFP-tagged fusion protein containing ovalbumin (OVA) antigenic peptides and tested peripheral anti-OVA peptide-specific sentinel OT-I and OT-II T cell activation. We report that oligodendrocyte or gut antigens are sampled similarly, as determined by comparable levels of OT-I T cell activation. However, activated T cells do not access the CNS under steady state conditions. These data show that afferent immunity is normally intact as there is no barrier at the antigen sampling level, but that efferent immunity is restricted. To understand how this one-sided surveillance contributes to CNS immune privilege will help us define mechanisms of CNS autoimmune disease initiation. PMID:24651727

Harris, Melissa G; Hulseberg, Paul; Ling, Changying; Karman, Jozsef; Clarkson, Benjamin D; Harding, Jeffrey S; Zhang, Mengxue; Sandor, Adam; Christensen, Kelsey; Nagy, Andras; Sandor, Matyas; Fabry, Zsuzsanna

2014-01-01

222

Immune privilege of the CNS is not the consequence of limited antigen sampling  

PubMed Central

Central nervous system (CNS) immune privilege is complex, and it is still not understood how CNS antigens are sampled by the peripheral immune system under steady state conditions. To compare antigen sampling from immune-privileged or nonprivileged tissues, we created transgenic mice with oligodendrocyte or gut epithelial cell expression of an EGFP-tagged fusion protein containing ovalbumin (OVA) antigenic peptides and tested peripheral anti-OVA peptide-specific sentinel OT-I and OT-II T cell activation. We report that oligodendrocyte or gut antigens are sampled similarly, as determined by comparable levels of OT-I T cell activation. However, activated T cells do not access the CNS under steady state conditions. These data show that afferent immunity is normally intact as there is no barrier at the antigen sampling level, but that efferent immunity is restricted. To understand how this one-sided surveillance contributes to CNS immune privilege will help us define mechanisms of CNS autoimmune disease initiation. PMID:24651727

Harris, Melissa G.; Hulseberg, Paul; Ling, Changying; Karman, Jozsef; Clarkson, Benjamin D.; Harding, Jeffrey S.; Zhang, Mengxue; Sandor, Adam; Christensen, Kelsey; Nagy, Andras; Sandor, Matyas; Fabry, Zsuzsanna

2014-01-01

223

Immune privilege of the CNS is not the consequence of limited antigen sampling  

NASA Astrophysics Data System (ADS)

Central nervous system (CNS) immune privilege is complex, and it is still not understood how CNS antigens are sampled by the peripheral immune system under steady state conditions. To compare antigen sampling from immune-privileged or nonprivileged tissues, we created transgenic mice with oligodendrocyte or gut epithelial cell expression of an EGFP-tagged fusion protein containing ovalbumin (OVA) antigenic peptides and tested peripheral anti-OVA peptide-specific sentinel OT-I and OT-II T cell activation. We report that oligodendrocyte or gut antigens are sampled similarly, as determined by comparable levels of OT-I T cell activation. However, activated T cells do not access the CNS under steady state conditions. These data show that afferent immunity is normally intact as there is no barrier at the antigen sampling level, but that efferent immunity is restricted. To understand how this one-sided surveillance contributes to CNS immune privilege will help us define mechanisms of CNS autoimmune disease initiation.

Harris, Melissa G.; Hulseberg, Paul; Ling, Changying; Karman, Jozsef; Clarkson, Benjamin D.; Harding, Jeffrey S.; Zhang, Mengxue; Sandor, Adam; Christensen, Kelsey; Nagy, Andras; Sandor, Matyas; Fabry, Zsuzsanna

2014-03-01

224

World Community Grid  

NSDL National Science Digital Library

Hosted by IBM, the World Community Grid is an ambitious public-computing network developed to bolster humanitarian research around the world. The Grid gains its power through a vast network of computers, all contributing small pieces to large research projects while they are idle. At present the Grid is supporting the Institute for Systems Biology's Human Proteome Folding Project, which will ultimately contribute to disease prevention by developing a greater understanding of the shapes of human proteins. In addition to information about this ongoing project, the Grid website contains downloadable Request for Proposals documents, and a section for Project Archives. The site also provides simple instructions for joining the Grid; several online forums; and Grid statistics including current member totals.

225

The Swiss ATLAS Grid  

Microsoft Academic Search

In this paper the technical solutions, the usage and the future development of the Swiss ATLAS Grid are presented. In 2009\\u000a the Swiss ATLAS Grid consists of four clusters with about 2000 shared computing cores and about 250 TB of disk space. It is\\u000a based on middlewares provided by the NorduGrid Collaboration and the EGEE project. It supports multiple virtual

Eric Cogneras; Szymon Gadomski; Sigve Haug; Peter Z. Kunszt; Sergio Maffioletti; Riccardo Murri; Cyril Topfel

2009-01-01

226

Grid Graph Reachability Problems  

Microsoft Academic Search

We study the complexity of restricted versions ofst- connectivity, which is the standard complete problem for NL. Grid graphs are a useful tool in this regard, since reachability on grid graphs is logspace-equivalent to reachability in general planar digraphs, and reachability on certain classes of grid graphs gives natural examples of problems that are hard forNC1 underAC0 reductions but are

Eric Allender; David A. Mix; Barringtony Tanmoy; Sambuddha Roy

227

Grids, Clouds, and Virtualization  

Microsoft Academic Search

\\u000a This chapter introduces and puts in context Grids, Clouds, and Virtualization. Grids promised to deliver computing power on\\u000a demand. However, despite a decade of active research, no viable commercial grid computing provider has emerged. On the other\\u000a hand, it is widely believed—especially in the Business World—that HPC will eventually become a commodity. Just as some commercial\\u000a consumers of electricity have

Massimo Cafaro; Giovanni Aloisio

2011-01-01

228

Grid Computing Security Lecture  

NSDL National Science Digital Library

Grid Computing Lecture~~Security: secure connection, authentication and authorization, password authentication, symmetric (secret) and asymmetric (public/private) key cyptography, RSA algorithm.

Ferner, Clayton; Wilkinson, Barry

2011-07-05

229

Enhanced Elliptic Grid Generation  

NASA Technical Reports Server (NTRS)

An enhanced method of elliptic grid generation has been invented. Whereas prior methods require user input of certain grid parameters, this method provides for these parameters to be determined automatically. "Elliptic grid generation" signifies generation of generalized curvilinear coordinate grids through solution of elliptic partial differential equations (PDEs). Usually, such grids are fitted to bounding bodies and used in numerical solution of other PDEs like those of fluid flow, heat flow, and electromagnetics. Such a grid is smooth and has continuous first and second derivatives (and possibly also continuous higher-order derivatives), grid lines are appropriately stretched or clustered, and grid lines are orthogonal or nearly so over most of the grid domain. The source terms in the grid-generating PDEs (hereafter called "defining" PDEs) make it possible for the grid to satisfy requirements for clustering and orthogonality properties in the vicinity of specific surfaces in three dimensions or in the vicinity of specific lines in two dimensions. The grid parameters in question are decay parameters that appear in the source terms of the inhomogeneous defining PDEs. The decay parameters are characteristic lengths in exponential- decay factors that express how the influences of the boundaries decrease with distance from the boundaries. These terms govern the rates at which distance between adjacent grid lines change with distance from nearby boundaries. Heretofore, users have arbitrarily specified decay parameters. However, the characteristic lengths are coupled with the strengths of the source terms, such that arbitrary specification could lead to conflicts among parameter values. Moreover, the manual insertion of decay parameters is cumbersome for static grids and infeasible for dynamically changing grids. In the present method, manual insertion and user specification of decay parameters are neither required nor allowed. Instead, the decay parameters are determined automatically as part of the solution of the defining PDEs. Depending on the shape of the boundary segments and the physical nature of the problem to be solved on the grid, the solution of the defining PDEs may provide for rates of decay to vary along and among the boundary segments and may lend itself to interpretation in terms of one or more physical quantities associated with the problem.

Kaul, Upender K.

2007-01-01

230

The Grid Economy  

Microsoft Academic Search

This work identifies challenges in managing resources in a Grid computing environment and proposes computational economy as a metaphor for effective management of resources and application scheduling. It identifies distributed resource management challenges and requirements of economy-based Grid systems, and discusses various representative economy-based systems, both historical and emerging, for cooperative and competitive trading of resources such as CPU cycles,

RAJKUMAR BUYYA; DAVID ABRAMSON; SRIKUMAR VENUGOPAL

2005-01-01

231

Grid Graph Reachability Problems  

Microsoft Academic Search

We study the complexity of reachability problems on various classes of grid graphs. Reachability on certain classes of grid graphs gives natural examples of problems that are hard for NC1 under AC0 reductions but are not known to be hard far L; they thus give insight into the structure of L. In addition to explicating the structure of L, another

Eric Allender; David A. Mix Barrington; Tanmoy Chakraborty; Samir Datta; Sambuddha Roy

2006-01-01

232

Grid Database Service Specification  

Microsoft Academic Search

Data management systems are central to many applications across multiple domains, and play a significant role in many others. Web services provide implementation neutral facilities for describing, invoking and orchestrating collections of networked resources. The Open Grid Services Architecture (OGSA) extends Web Services with consistent interfaces for creating, managing and exchanging information among Grid Services, which are dynamic computational artefacts

James Clerk Maxwell; Susan Malaika; Gavin McCance; James Magowan; Norman W. Paton; Greg Riccardi

2002-01-01

233

Decentral Smart Grid Control  

NASA Astrophysics Data System (ADS)

Stable operation of complex flow and transportation networks requires balanced supply and demand. For the operation of electric power grids—due to their increasing fraction of renewable energy sources—a pressing challenge is to fit the fluctuations in decentralized supply to the distributed and temporally varying demands. To achieve this goal, common smart grid concepts suggest to collect consumer demand data, centrally evaluate them given current supply and send price information back to customers for them to decide about usage. Besides restrictions regarding cyber security, privacy protection and large required investments, it remains unclear how such central smart grid options guarantee overall stability. Here we propose a Decentral Smart Grid Control, where the price is directly linked to the local grid frequency at each customer. The grid frequency provides all necessary information about the current power balance such that it is sufficient to match supply and demand without the need for a centralized IT infrastructure. We analyze the performance and the dynamical stability of the power grid with such a control system. Our results suggest that the proposed Decentral Smart Grid Control is feasible independent of effective measurement delays, if frequencies are averaged over sufficiently large time intervals.

Schäfer, Benjamin; Matthiae, Moritz; Timme, Marc; Witthaut, Dirk

2015-01-01

234

Security for grids  

SciTech Connect

Securing a Grid environment presents a distinctive set of challenges. This paper groups the activities that need to be secured into four categories: naming and authentication; secure communication; trust, policy, and authorization; and enforcement of access control. It examines the current state of the art in securing these processes and introduces new technologies that promise to meet the security requirements of Grids more completely.

Humphrey, Marty; Thompson, Mary R.; Jackson, Keith R.

2005-08-14

235

Good news–bad news: the Yin and Yang of immune privilege in the eye  

PubMed Central

The eye and the brain are prototypical tissues manifesting immune privilege (IP) in which immune responses to foreign antigens, particularly alloantigens are suppressed, and even completely inhibited. Explanations for this phenomenon are numerous and mostly reflect our evolving understanding of the molecular and cellular processes underpinning immunological responses generally. IP is now viewed as a property of many tissues and the level of expression of IP varies not only with the tissue but with the nature of the foreign antigen and changes in the limited conditions under which privilege can operate as a mechanism of immunological tolerance. As a result, IP functions normally as a homeostatic mechanism preserving normal function in tissues, particularly those with highly specialized function and limited capacity for renewal such as the eye and brain. However, IP is relatively easily bypassed in the face of a sufficiently strong immunological response, and the privileged tissues may be at greater risk of collateral damage because its natural defenses are more easily breached than in a fully immunocompetent tissue which rapidly rejects foreign antigen and restores integrity. This two-edged sword cuts its swathe through the eye: under most circumstances, IP mechanisms such as blood–ocular barriers, intraocular immune modulators, induction of T regulatory cells, lack of lymphatics, and other properties maintain tissue integrity; however, when these are breached, various degrees of tissue damage occur from severe tissue destruction in retinal viral infections and other forms of uveoretinal inflammation, to less severe inflammatory responses in conditions such as macular degeneration. Conversely, ocular IP and tumor-related IP can combine to permit extensive tumor growth and increased risk of metastasis thus threatening the survival of the host. PMID:23230433

Forrester, John V.; Xu, Heping

2012-01-01

236

Data Grid Implementations  

SciTech Connect

Data grids link distributed, heterogeneous storage resources into a coherent data management system. From a user perspective, the data grid provides a uniform name space across the underlying storage systems, while supporting retrieval and storage of files. In the high energy physics community, at least six data grids have been implemented for the storage and distribution of experimental data. Data grids are also being used to support projects as diverse as digital libraries (National Library of Medicine Visible Embryo project), federation of multiple astronomy sky surveys (NSF National Virtual Observatory project), and integration of distributed data sets (Long Term Ecological Reserve). Data grids also form the core interoperability mechanisms for creating persistent archives, in which data collections are migrated to new technologies over time. The ability to provide a uniform name space across multiple administration domains is becoming a critical component of national-scale, collaborative projects.

Moore, Reagan W.; Studham, Ronald S.; Rajasekar, Arcot; Watson, Chip; Stockinger, Heinz; Kunszt, Peter; Charlie Catlett and Ian Foster

2002-02-27

237

Contribution of IL-12/IL-35 Common Subunit p35 to Maintaining the Testicular Immune Privilege  

PubMed Central

The testis is an organ with immune privilege. The comprehensive blood–testis barrier formed by Sertoli cells protects autoimmunogenic spermatozoa and spermatids from attack by the body’s immune system. The interleukin (IL)-6/IL-12 family cytokines IL-12 (p35/p40), IL-23 (p19/p40), IL-27 (p28/Epstein-Barr virus?induced gene 3 [EBI3]), and IL-35 (p35/EBI3) play critical roles in the regulation of various immune responses, but their roles in testicular immune privilege are not well understood. In the present study, we investigated whether these cytokines are expressed in the testes and whether they function in the testicular immune privilege by using mice deficient in their subunits. Expression of EBI3 was markedly increased at both mRNA and protein levels in the testes of 10- or 12-week-old wild-type mice as compared with levels in 2-week-old mice, whereas the mRNA expression of p40 was markedly decreased and that of p35 was conserved between these two groups. Lack of EBI3, p35, and IL-12 receptor ?2 caused enhanced infiltration of lymphocytes into the testicular interstitium, with increased interferon-? expression in the testes and autoantibody production against mainly acrosomal regions of spermatids. Spermatogenic disturbance was more frequently observed in the seminiferous tubules, especially when surrounded by infiltrating lymphocytes, of these deficient mice than in those of wild-type mice. In particular, p35-deficient mice showed the most severe spermatogenic disturbance. Immunohistochemical analyses revealed that endothelial cells and peritubular cells in the interstitium were highly positive for p35 at both ages, and CD163+ resident macrophages positive for p35 and EBI3, possibly producing IL-35, were also detected in the interstitium of 12-week-old mice but not those of 2-week-old mice. These results suggest that p35 helps in maintaining the testicular immune privilege, in part in an IL-35-dependent manner. PMID:24760014

Terayama, Hayato; Yoshimoto, Takayuki; Hirai, Shuichi; Naito, Munekazu; Qu, Ning; Hatayama, Naoyuki; Hayashi, Shogo; Mitobe, Kana; Furusawa, Jun-ichi; Mizoguchi, Izuru; Kezuka, Takeshi; Goto, Hiroshi; Suyama, Kaori; Moriyama, Hiroshi; Sakabe, Kou; Itoh, Masahiro

2014-01-01

238

Trends in life science grid: from computing grid to knowledge grid  

PubMed Central

Background Grid computing has great potential to become a standard cyberinfrastructure for life sciences which often require high-performance computing and large data handling which exceeds the computing capacity of a single institution. Results This survey reviews the latest grid technologies from the viewpoints of computing grid, data grid and knowledge grid. Computing grid technologies have been matured enough to solve high-throughput real-world life scientific problems. Data grid technologies are strong candidates for realizing "resourceome" for bioinformatics. Knowledge grids should be designed not only from sharing explicit knowledge on computers but also from community formulation for sharing tacit knowledge among a community. Conclusion Extending the concept of grid from computing grid to knowledge grid, it is possible to make use of a grid as not only sharable computing resources, but also as time and place in which people work together, create knowledge, and share knowledge and experiences in a community. PMID:17254294

Konagaya, Akihiko

2006-01-01

239

High risk corneal allografts and why they lose their immune privilege  

PubMed Central

Purpose of review Corneal allografts are routinely performed without HLA typing or systemic immunosuppressive drugs. However, certain conditions create high risks for immune rejection. This review discusses recent insights into the mechanisms that rob the corneal allograft of its immune privilege. Recent findings Studies in mice have revealed that stimuli that induce new blood vessel growth in the cornea also elicit proliferation of lymph vessels. Lymph vessels facilitate migration of antigen presenting cells to regional lymph nodes where they induce alloimmune responses. The presence of blood vessels in the corneal graft bed creates a unique chemokine milieu that stimulates recruitment of sensitized lymphocytes into the corneal allograft. Other data indicate that corneal allograft survival is closely associated with Foxp3 expression in CD4+CD25+Foxp3+ T regulatory cells (Tregs), while reduced expression of Foxp3 in T regs creates a high risk for graft rejection. Recent evidence indicates that allergic diseases have a profound impact on the immune response and produce a dramatic increase in corneal allograft rejection. Summary Understanding the underlying mechanisms that create “high risk” hosts may provide important therapeutic targets for restoring immune privilege of corneal allografts and enhancing their survival. PMID:20689406

Niederkorn, Jerry Y.

2011-01-01

240

IL-17A-dependent CD4+CD25+ Tregs Promote Immune Privilege of Corneal Allografts  

PubMed Central

IL-17A is a pro-inflammatory cytokine that has received attention for its role in the pathogenesis of several autoimmune diseases. IL-17A has also been implicated in cardiac and renal allograft rejection. Accordingly, we hypothesized that depletion of IL-17A would enhance corneal allograft survival. Instead, our results demonstrate that blocking IL-17A in a mouse model of keratoplasty accelerated the tempo and increased the incidence of allograft rejection from 50% to 90%. We describe a novel mechanism by which CD4+CD25+ T regulatory cells (Tregs) respond to IL-17A and enhance corneal allograft survival. Our findings suggest that: 1) IL-17A is necessary for ocular immune privilege; 2) IL-17A is not required for the induction of anterior chamber-associated immune deviation (ACAID); 3) Tregs require IL-17A to mediate a contact-dependent suppression; 4) corneal allograft Tregs suppress the efferent arm of the immune response and are antigen-specific; 5) Tregs are not required for corneal allograft survival beyond day 30; and 6) corneal allograft-induced Treg-mediated suppression is transient. Our findings identify IL-17A as a cytokine essential for the maintenance of corneal immune privilege and establish a new paradigm whereby interplay between IL-17A and CD4+CD25+ Tregs is necessary for survival of corneal allografts. PMID:21551366

Cunnusamy, Khrishen; Chen, Peter W.; Niederkorn, Jerry Y.

2011-01-01

241

Healthcare access as a right, not a privilege: a construct of Western thought.  

PubMed

Over 45 million Americans are uninsured or underinsured. Those living in poverty exhibit the worst health status. Employment, education, income, and race are important factors in a person's ability to acquire healthcare access. Having established that there are people lacking healthcare access due to multi-factorial etiologies, the question arises as to whether the intervention necessary to assist them in obtaining such access should be considered a privilege, or a right. The right to healthcare access is examined from the perspective of Western thought. Specifically through the works of Aristotle, Immanuel Kant, Thomas Hobbes, Thomas Paine, Hannah Arendt, James Rawls, and Norman Daniels, which are accompanied by a contemporary example of intervention on behalf of the medically needy by the The Johns Hopkins Urban Health Institute. As human beings we are all valuable social entities whereby, through the force of morality, through implicitly forged covenants among us as individuals and between us and our governments, and through the natural rights we maintain as individuals and those we collectively surrender to the common good, it has been determined by nature, natural laws, and natural rights that human beings have the right, not the privilege, to healthcare access. PMID:17391522

Papadimos, Thomas J

2007-01-01

242

Healthcare access as a right, not a privilege: a construct of Western thought  

PubMed Central

Over 45 million Americans are uninsured or underinsured. Those living in poverty exhibit the worst health status. Employment, education, income, and race are important factors in a person's ability to acquire healthcare access. Having established that there are people lacking healthcare access due to multi-factorial etiologies, the question arises as to whether the intervention necessary to assist them in obtaining such access should be considered a privilege, or a right. The right to healthcare access is examined from the perspective of Western thought. Specifically through the works of Aristotle, Immanuel Kant, Thomas Hobbes, Thomas Paine, Hannah Arendt, James Rawls, and Norman Daniels, which are accompanied by a contemporary example of intervention on behalf of the medically needy by the The Johns Hopkins Urban Health Institute. As human beings we are all valuable social entities whereby, through the force of morality, through implicitly forged covenants among us as individuals and between us and our governments, and through the natural rights we maintain as individuals and those we collectively surrender to the common good, it has been determined by nature, natural laws, and natural rights that human beings have the right, not the privilege, to healthcare access. PMID:17391522

Papadimos, Thomas J

2007-01-01

243

Immunologic privilege in the central nervous system and the blood–brain barrier  

PubMed Central

The brain is in many ways an immunologically and pharmacologically privileged site. The blood–brain barrier (BBB) of the cerebrovascular endothelium and its participation in the complex structure of the neurovascular unit (NVU) restrict access of immune cells and immune mediators to the central nervous system (CNS). In pathologic conditions, very well-organized immunologic responses can develop within the CNS, raising important questions about the real nature and the intrinsic and extrinsic regulation of this immune privilege. We assess the interactions of immune cells and immune mediators with the BBB and NVU in neurologic disease, cerebrovascular disease, and intracerebral tumors. The goals of this review are to outline key scientific advances and the status of the science central to both the neuroinflammation and CNS barriers fields, and highlight the opportunities and priorities in advancing brain barriers research in the context of the larger immunology and neuroscience disciplines. This review article was developed from reports presented at the 2011 Annual Blood-Brain Barrier Consortium Meeting. PMID:23072749

Muldoon, Leslie L; Alvarez, Jorge I; Begley, David J; Boado, Ruben J; del Zoppo, Gregory J; Doolittle, Nancy D; Engelhardt, Britta; Hallenbeck, John M; Lonser, Russell R; Ohlfest, John R; Prat, Alexandre; Scarpa, Maurizio; Smeyne, Richard J; Drewes, Lester R; Neuwelt, Edward A

2013-01-01

244

76 FR 1153 - Atlantic Grid Operations A LLC, Atlantic Grid Operations B LLC, Atlantic Grid Operations C LLC...  

Federal Register 2010, 2011, 2012, 2013, 2014

...OF ENERGY Federal Energy Regulatory Commission [Docket No. EL11-13-000] Atlantic Grid Operations A LLC, Atlantic Grid Operations B LLC, Atlantic Grid Operations C LLC, Atlantic Grid Operations D LLC and Atlantic Grid Operations E...

2011-01-07

245

The TeraGrid  

NSDL National Science Digital Library

A project of the National Science Foundation, the TeraGrid is "a multi-year effort to build and deploy the world's largest, fastest, distributed infrastructure for open scientific research." This paper, published in September 2002, describes the activities and ongoing projects that will ultimately lead to the project's completion. TeraGrid, as the name implies, is based on principles of grid computing. It will eventually consist of a massive network of computers spread out over several sites that can work simultaneously and independently on scientific applications. Many specifications and design objectives are outlined in the paper, offering some insight into the ambitious project.

Catlett, Charlie.

2002-01-01

246

What is the grid? a three point checklist  

Microsoft Academic Search

Grids have moved from the obscurely academic to the highly popular. We read about Compute Grids, Data Grids, Science Grids, Access Grids, Knowledge Grids, Bio Grids, Sensor Grids, Cluster Grids, Campus Grids, Tera Grids, and Commodity Grids. The skeptic can be forgiven for wondering if there is more to the Grid than, as one wag put it, a \\

I. Foster

2002-01-01

247

Generation of orthogonal grids by boundary grid relaxation  

NASA Technical Reports Server (NTRS)

Two elliptic grid generation schemes that yield orthogonal grids are presented (FGBR and UBGR). With the UBGR scheme, the grid points on the flow boundaries are automatically determined by the algorithm, while the FBGR scheme at most one half of the boundary grid points may be prespecified and the remainder of boundary grid points are determined automatically. Numerical examples show their capability of easy stretching, clustering and shock fitting while maintaining orthogonality of grid. The present method can be implemented into existing elliptic grid generation programs with relatively minor modifications.

Nakamura, S.

1983-01-01

248

Exploring Hypersonic, Unstructured-Grid Issues through Structured Grids  

NASA Technical Reports Server (NTRS)

Pure-tetrahedral unstructured grids have been shown to produce asymmetric heat transfer rates for symmetric problems. Meanwhile, two-dimensional structured grids produce symmetric solutions and as documented here, introducing a spanwise degree of freedom to these structured grids also yields symmetric solutions. The effects of grid skewness and other perturbations of structured-grids are investigated to uncover possible mechanisms behind the unstructured-grid solution asymmetries. By using controlled experiments around a known, good solution, the effects of particular grid pathologies are uncovered. These structured-grid experiments reveal that similar solution degradation occurs as for unstructured grids, especially for heat transfer rates. Non-smooth grids within the boundary layer is also shown to produce large local errors in heat flux but do not affect surface pressures.

Mazaheri, Ali R.; Kleb, Bill

2007-01-01

249

Using Grid Benchmarks for Dynamic Scheduling of Grid Applications  

NASA Technical Reports Server (NTRS)

Navigation or dynamic scheduling of applications on computational grids can be improved through the use of an application-specific characterization of grid resources. Current grid information systems provide a description of the resources, but do not contain any application-specific information. We define a GridScape as dynamic state of the grid resources. We measure the dynamic performance of these resources using the grid benchmarks. Then we use the GridScape for automatic assignment of the tasks of a grid application to grid resources. The scalability of the system is achieved by limiting the navigation overhead to a few percent of the application resource requirements. Our task submission and assignment protocol guarantees that the navigation system does not cause grid congestion. On a synthetic data mining application we demonstrate that Gridscape-based task assignment reduces the application tunaround time.

Frumkin, Michael; Hood, Robert

2003-01-01

250

The gridded electromagnet probe  

E-print Network

We attempted to measure the anisotropy in the electron distribution function in magnetized plasma by exploiting the adiabatic invariance of the electron's magnetic moment with a probe comprising a grid, a collector, and ...

Shadman, K. (Khashayar), 1972-

2003-01-01

251

Distributed Adaptive Grid Hierarchy  

NSDL National Science Digital Library

DAGH (which stands for Distributed Adaptive Grid Hierarchy) was developed as a computational toolkit for the Binary Black Hole NSF Grand Challenge Project. It provides the framework to solve systems of partial differential equations using adaptive finite difference methods.

252

Space Development Grid Portal  

NASA Technical Reports Server (NTRS)

This viewgraph presentation provides information on the development of a portal to provide secure and distributed grid computing for Payload Operations Integrated Center and Mission Control Center ground services.

Vaziri, Arsi

2004-01-01

253

Implementing Production Grids  

NASA Technical Reports Server (NTRS)

We have presented the essence of experience gained in building two production Grids, and provided some of the global context for this work. As the reader might imagine, there were a lot of false starts, refinements to the approaches and to the software, and several substantial integration projects (SRB and Condor integrated with Globus) to get where we are today. However, the point of this paper is to try and make it substantially easier for others to get to the point where Information Power Grids (IPG) and the DOE Science Grids are today. This is what is needed in order to move us toward the vision of a common cyber infrastructure for science. The author would also like to remind the readers that this paper primarily represents the actual experiences that resulted from specific architectural and software choices during the design and implementation of these two Grids. The choices made were dictated by the criteria laid out in section 1. There is a lot more Grid software available today that there was four years ago, and various of these packages are being integrated into IPG and the DOE Grids. However, the foundation choices of Globus, SRB, and Condor would not be significantly different today than they were four years ago. Nonetheless, if the GGF is successful in its work - and we have every reason to believe that it will be - then in a few years we will see that the 28 functions provided by these packages will be defined in terms of protocols and MIS, and there will be several robust implementations available for each of the basic components, especially the Grid Common Services. The impact of the emerging Web Grid Services work is not yet clear. It will likely have a substantial impact on building higher level services, however it is the opinion of the author that this will in no way obviate the need for the Grid Common Services. These are the foundation of Grids, and the focus of almost all of the operational and persistent infrastructure aspects of Grids.

Johnston, William E.; Ziobarth, John (Technical Monitor)

2002-01-01

254

IDL Grid Web Portal  

NASA Astrophysics Data System (ADS)

Image Data Language is a software for data analysis, visualization and cross-platform application development. The potentiality of IDL is well-known in the academic scientific world, especially in the astronomical environment where thousands of procedures are developed by using IDL. The typical use of IDL is the interactive mode but it is also possible to run IDL programs that do not require any interaction with the user, submitting them in batch or background modality. Through the interactive mode the user immediately receives images or other data produced in the running phase of the program; in batch or background mode, the user will have to wait for the end of the program, sometime for many hours or days to obtain images or data that IDL produced as output: in fact in Grid environment it is possible to access to or retrieve data only after completion of the program. The work that we present gives flexibility to IDL procedures submitted to the Grid computer infrastructure. For this purpose we have developed an IDL Grid Web Portal to allow the user to access the Grid and to submit IDL programs granting a full job control and the access to images and data generated during the running phase, without waiting for their completion. We have used the PHP technology and we have given the same level of security that Grid normally offers to its users. In this way, when the user notices that the intermediate program results are not those expected, he can stop the job, change the parameters to better satisfy the computational algorithm and resubmit the program, without consuming the CPU time and other Grid resources. The IDL Grid Web Portal allows you to obtain IDL generated images, graphics and data tables by using a normal browser. All conversations from the user and the Grid resources occur via Web, as well as authentication phases. The IDL user has not to change the program source much because the Portal will automatically introduce the appropriate modification before submitting the IDL program to the Grid. When the user wishes, he will be able to check the status of his program and outputs, if any, because the Portal will assign the users a specific and univocal session identification number. This Web portal runs in the Trinacria Grid Virtual Laboratory and fully exploits the power of this grid in terms of CPU and data storage.

Massimino, P.; Costa, A.

2008-08-01

255

GRIDS: Grid-Scale Rampable Intermittent Dispatchable Storage  

SciTech Connect

GRIDS Project: The 12 projects that comprise ARPA-E’s GRIDS Project, short for “Grid-Scale Rampable Intermittent Dispatchable Storage,” are developing storage technologies that can store renewable energy for use at any location on the grid at an investment cost less than $100 per kilowatt hour. Flexible, large-scale storage would create a stronger and more robust electric grid by enabling renewables to contribute to reliable power generation.

None

2010-09-01

256

Database Oriented Grid Middlewares  

Microsoft Academic Search

Abstract—Efficient management of massive data sets is a key aspect in typical grid and e-science applications. To this end, the benefits of employing database technologies in such applications has been identified since the early days of grid computing, which aims at enabling coordinated resource shar- ing, knowledge generation and problem solving in dynamic, multi-institutional virtual organizations through a distributed, scalable,

Efthymia Tsamoura; Anastasios Gounaris

2009-01-01

257

Unstructured Grids on NURBS Surfaces  

NASA Technical Reports Server (NTRS)

A simple and efficient computational method is presented for unstructured surface grid generation. This method is built upon an advancing front technique combined with grid projection. The projection technique is based on a Newton-Raphson method. This combined approach has been successfully implemented for structured and unstructured grids. In this paper, the implementation for unstructured grid is discussed.

Samareh-Abolhassani, Jamshid

1993-01-01

258

A Java commodity grid kit  

Microsoft Academic Search

In this paper we report on the features of the Java Commodity Grid Kit. The Java CoG Kit provides middleware for accessing Grid functionality from the Java framework. Java CoG Kit middleware is general enough to design a variety of advanced Grid applications with quite different user requirements. Access to the Grid is established via Globus protocols, allowing the Java

Gregor Von Laszewski; Ian T. Foster; Jarek Gawor

2001-01-01

259

TeraGrid  

NSDL National Science Digital Library

TeraGrid is an open scientific discovery infrastructure combining leadership class resources at nine partner sites to create an integrated, persistent computational resource. Using high-performance network connections, the TeraGrid integrates high-performance computers, data resources and tools, and high-end experimental facilities around the country. These integrated resources include more than 102 teraflops of computing capability and more than 15 petabytes (quadrillions of bytes) of online and archival data storage with rapid access and retrieval over high-performance networks. Through the TeraGrid, researchers can access over 100 discipline-specific databases. With this combination of resources, the TeraGrid is the world's largest, most comprehensive distributed cyberinfrastructure for open scientific research. TeraGrid is coordinated through the Grid Infrastructure Group (GIG) at the University of Chicago, working in partnership with the Resource Provider sites: Indiana University, Oak Ridge National Laboratory, National Center for Supercomputing Applications, Pittsburgh Supercomputing Center, Purdue University, San Diego Supercomputer Center, Texas Advanced Computing Center, University of Chicago/Argonne National Laboratory, and the National Center for Atmospheric Research.

260

Disrupting privilege, identity, and meaning: A reflexive dance of environmental education  

NASA Astrophysics Data System (ADS)

By inviting educators from diverse backgrounds to participate in creative conversations, I had hoped to reflect on experiences that had helped construct our theories of environmental education, and inform practice. I sought consistency across the espoused ethics of co-participants, namely critical perspectives grounded in environmental justice. However, this quest was interrupted by a growing awareness of the interference of power dynamics between myself and the other participants, and of my own commitment to respect the stories being told. This narrative describes my "dance" of meaning making. The community dance examining privilege, identity and meaning is a study of how I may be contributing to the same oppressive situations I passionately strive to work against. Concepts of knowledge, power, and identity ebbed and flowed within stories drawn from the mountains of Tanzania to the hills of Colombia, and from the frozen shores of Kirkland Lake to the trout filled streams of Karman, Iran. Making meaning is itself an act of power and privilege, so I danced to make room for multiple understandings of these stories, of environmental education, and of research. This work offers an experience of disruption that raises questions and broadens the inclusion of people, ideas and other life into "accepted" research and pedagogical practices. Conventions embedded within research and education were disrupted throughout this reflexive process. As the author of this text, I was uncomfortable with the role of being the dominant voice, and consciously chose not to impose my interpretation on the stories shared by co-participants. The struggle to resist the very privilege in which my own education practice and this research process are so deeply steeped revealed normative forces that often threaten to undermine attempts by educators and researchers to act according to critical theories and environmental justice ethics. To accept the invitation to dance with the text is to step into the rhythmic intricacies of a collaborative process of reflexion. Circling hand-in-hand and giving weight to fellow dancers' movements shifts individuals from being carriers of truths to being community members sharing in the collaborative process of dancing the world into existence.

Neilson, Alison Laurie

261

An Adaptive Unstructured Grid Method by Grid Subdivision, Local Remeshing, and Grid Movement  

NASA Technical Reports Server (NTRS)

An unstructured grid adaptation technique has been developed and successfully applied to several three dimensional inviscid flow test cases. The approach is based on a combination of grid subdivision, local remeshing, and grid movement. For solution adaptive grids, the surface triangulation is locally refined by grid subdivision, and the tetrahedral grid in the field is partially remeshed at locations of dominant flow features. A grid redistribution strategy is employed for geometric adaptation of volume grids to moving or deforming surfaces. The method is automatic and fast and is designed for modular coupling with different solvers. Several steady state test cases with different inviscid flow features were tested for grid/solution adaptation. In all cases, the dominant flow features, such as shocks and vortices, were accurately and efficiently predicted with the present approach. A new and robust method of moving tetrahedral "viscous" grids is also presented and demonstrated on a three-dimensional example.

Pirzadeh, Shahyar Z.

1999-01-01

262

Cancer stem cells from epithelial ovarian cancer patients privilege oxidative phosphorylation, and resist glucose deprivation  

PubMed Central

We investigated the metabolic profile of cancer stem cells (CSC) isolated from patients with epithelial ovarian cancer. CSC overexpressed genes associated with glucose uptake, oxidative phosphorylation (OXPHOS), and fatty acid ?-oxidation, indicating higher ability to direct pyruvate towards the Krebs cycle. Consistent with a metabolic profile dominated by OXPHOS, the CSC showed higher mitochondrial reactive oxygen species (ROS) production and elevated membrane potential, and underwent apoptosis upon inhibition of the mitochondrial respiratory chain. The CSC also had a high rate of pentose phosphate pathway (PPP) activity, which is not typical of cells privileging OXPHOS over glycolysis, and may rather reflect the PPP role in recharging scavenging enzymes. Furthermore, CSC resisted in vitro and in vivo glucose deprivation, while maintaining their CSC phenotype and OXPHOS profile. These observations may explain the CSC resistance to anti-angiogenic therapies, and indicate this peculiar metabolic profile as a possible target of novel treatment strategies. PMID:24946808

Ciminale, Vincenzo; Silic-Benussi, Micol; Guzzo, Giulia; Rasola, Andrea; Frasson, Chiara; Nardo, Giorgia; Zulato, Elisabetta; Nicoletto, Maria Ornella; Manicone, Mariangela

2014-01-01

263

Confronting diminished epistemic privilege and epistemic injustice in pregnancy by challenging a "panoptics of the womb".  

PubMed

This paper demonstrates how the problematic kinds of epistemic power that physicians have can diminish the epistemic privilege that pregnant women have over their bodies and can put them in a state of epistemic powerlessness. This result, I argue, constitutes an epistemic injustice for many pregnant women. A reconsideration of how we understand and care for pregnant women and of the physician-patient relationship can provide us with a valuable context and starting point for helping to alleviate the knowledge/power problems that are symptomatic of the current system and structure of medicine. I suggest that we can begin to confront this kind of injustice if medicine adopts a more phenomenological understanding of bodies and if physicians and patients-in this case, pregnant women-become what I call "epistemic peers." PMID:25503792

Freeman, Lauren

2015-02-01

264

It is my pleasure and privilege to offer my first report on the stewardship of New Jersey  

E-print Network

It is my pleasure and privilege to offer my first report on the stewardship of New Jersey Institute a great jumping-off point for reaffirming and refining our priorities. The state of New Jersey has own plans resonate with the State Strategic Plan. "New Jersey's State Development and Redevelopment

Bieber, Michael

265

Distinctive Features Hold a Privileged Status in the Computation of Word Meaning: Implications for Theories of Semantic Memory  

ERIC Educational Resources Information Center

The authors present data from 2 feature verification experiments designed to determine whether distinctive features have a privileged status in the computation of word meaning. They use an attractor-based connectionist model of semantic memory to derive predictions for the experiments. Contrary to central predictions of the conceptual structure…

Cree, George S.; McNorgan, Chris; McRae, Ken

2006-01-01

266

Determinants of lottery participation for big game hunting privileges: Resident versus nonresident elk hunters in New Mexico  

Microsoft Academic Search

The objective of this study is to investigate the statistical determinants of lottery applications for New Mexico elk hunting licenses from three different groups: (1) residents, (2) guided nonresidents, and (3) nonguided nonresidents. Relatively scant empirical information is available to game managers on the statistical determinants of lottery applications for elk hunting privileges, and what is available does not distinguish

David O. Scrogin; Robert P. Berrens

1999-01-01

267

Formal Models of a Least Privilege Separation Kernel in Alloy David Phelps, Mikhail Auguston, Timothy E. Levin  

E-print Network

.a.phelps@navy.mil maugusto@nps.edu levin@nps.edu Abstract: We describe the specification of the formal security policy model and formal top-level specification for the Least Privilege Separation Kernel (LPSK) in Alloy, a relatively), in a formal specification language. These specifications are then examined for self

268

Gamma delta T cells are needed for ocular immune privilege and corneal graft survival.  

PubMed

It has been recognized for over a century that the anterior chamber of the eye is endowed with a remarkable immune privilege. One contributing component is the Ag-specific down-regulation of systemic delayed-type hypersensitivity (DTH) that is induced when Ags are introduced into the anterior chamber. This phenomenon, termed anterior chamber-associated immune deviation (ACAID), culminates in the generation of regulatory cells that inhibit the induction (afferent suppression) and expression (efferent suppression) of DTH. Since gamma delta T cells play a major role in other forms of immune regulation, we suspected they might contribute to the induction and expression of ACAID. Mice treated with anti-gamma delta Ab failed to develop ACAID following anterior chamber injection of either soluble Ag (OVA) or alloantigens (spleen cells). Additional experiments with knockout mice confirmed that mice lacking functional gamma delta T cells also fail to develop ACAID. Using a local adoptive transfer of DTH assay, we found that gamma delta T cells were required for the generation of regulatory T cells, but did not function as the efferent regulatory cells of ACAID. The importance of gamma delta T cells in corneal allograft survival was confirmed by blocking gamma delta T cells with GL3 Ab before corneal transplantation. While in vivo treatment with normal hamster serum had no effect on corneal graft survival, infusion of anti-gamma delta Ab resulted in a profound increase in corneal allograft rejection. Thus, gamma delta T cells are needed for sustaining at least one aspect of ocular immune privilege and for promoting corneal allograft survival. PMID:11254685

Skelsey, M E; Mellon, J; Niederkorn, J Y

2001-04-01

269

The drive to innovation: The privileging of science and technology knowledge production in Canada  

NASA Astrophysics Data System (ADS)

This dissertation project explored the privileging of knowledge production in science and technology as a Canadian national economic, political and social strategy. The project incorporated the relationship between nation-state knowledge production and how that knowledge is then systematically evaluated, prioritized and validated by systems of health technology assessment (HTA). The entry point into the analysis and this dissertation project was the Scientific Research and Experimental Design (SR&ED) federal tax incentive program as the cornerstone of science and technology knowledge production in Canada. The method of inquiry and analysis examined the submission documents submitted by key stakeholders across the country, representing public, private and academic standpoints, during the public consultation process conducted from 2007 to 2008 and how each of these standpoints is hooked into the public policy interests and institutional structures that produce knowledge in science and technology. Key public meetings, including the public information sessions facilitated by the Canada Revenue Agency and private industry conferences, provided context and guidance regarding the current pervasive public and policy interests that direct and drive the policy debates. Finally, the "Innovation Canada: A Call to Action Review of Federal Support to Research and Development: Expert Panel Report," commonly referred to as "The Jenkins Report" (Jenkins et al., 2011), was critically evaluated as the expected predictor of future public policy changes associated with the SR&ED program and the future implications for the production of knowledge in science and technology. The method of inquiry and analytical lens was a materialist approach that drew on the inspiring frameworks of such scholars as Dorothy Smith, Michel Foucault, Kaushik Sunder Rajan, Melinda Cooper, and, Gilles Deleuze. Ultimately, I strove to illuminate the normalizing force and power of knowledge production in science and technology, and the disciplines and structures that encompass it and are hooked into it where the privileging of such knowledge becomes hegemonic within and by the regimes of knowledge production that created them.

Cauchi, Laura

270

NREL Smart Grid Projects  

SciTech Connect

Although implementing Smart Grid projects at the distribution level provides many advantages and opportunities for advanced operation and control, a number of significant challenges must be overcome to maintain the high level of safety and reliability that the modern grid must provide. For example, while distributed generation (DG) promises to provide opportunities to increase reliability and efficiency and may provide grid support services such as volt/var control, the presence of DG can impact distribution operation and protection schemes. Additionally, the intermittent nature of many DG energy sources such as photovoltaics (PV) can present a number of challenges to voltage regulation, etc. This presentation provides an overview a number of Smart Grid projects being performed by the National Renewable Energy Laboratory (NREL) along with utility, industry, and academic partners. These projects include modeling and analysis of high penetration PV scenarios (with and without energy storage), development and testing of interconnection and microgrid equipment, as well as the development and implementation of advanced instrumentation and data acquisition used to analyze the impacts of intermittent renewable resources. Additionally, standards development associated with DG interconnection and analysis as well as Smart Grid interoperability will be discussed.

Hambrick, J.

2012-01-01

271

Ion Accelerator With Negatively Biased Decelerator Grid  

NASA Technical Reports Server (NTRS)

Three-grid ion accelerator in which accelerator grid is biased at negative potential and decelerator grid downstream of accelerator grid biased at smaller negative potential. This grid and bias arrangement reduces frequency of impacts, upon accelerator grid, of charge-exchange ions produced downstream in collisions between accelerated ions and atoms and molecules of background gas. Sputter erosion of accelerator grid reduced.

Brophy, John R.

1994-01-01

272

Information Power Grid Posters  

NASA Technical Reports Server (NTRS)

This document is a summary of the accomplishments of the Information Power Grid (IPG). Grids are an emerging technology that provide seamless and uniform access to the geographically dispersed, computational, data storage, networking, instruments, and software resources needed for solving large-scale scientific and engineering problems. The goal of the NASA IPG is to use NASA's remotely located computing and data system resources to build distributed systems that can address problems that are too large or complex for a single site. The accomplishments outlined in this poster presentation are: access to distributed data, IPG heterogeneous computing, integration of large-scale computing node into distributed environment, remote access to high data rate instruments,and exploratory grid environment.

Vaziri, Arsi

2003-01-01

273

Distributed Accounting on the Grid  

NASA Technical Reports Server (NTRS)

By the late 1990s, the Internet was adequately equipped to move vast amounts of data between HPC (High Performance Computing) systems, and efforts were initiated to link together the national infrastructure of high performance computational and data storage resources together into a general computational utility 'grid', analogous to the national electrical power grid infrastructure. The purpose of the Computational grid is to provide dependable, consistent, pervasive, and inexpensive access to computational resources for the computing community in the form of a computing utility. This paper presents a fully distributed view of Grid usage accounting and a methodology for allocating Grid computational resources for use on a Grid computing system.

Thigpen, William; Hacker, Thomas J.; McGinnis, Laura F.; Athey, Brian D.

2001-01-01

274

Essential Grid Workflow Monitoring Elements  

SciTech Connect

Troubleshooting Grid workflows is difficult. A typicalworkflow involves a large number of components networks, middleware,hosts, etc. that can fail. Even when monitoring data from all thesecomponents is accessible, it is hard to tell whether failures andanomalies in these components are related toa given workflow. For theGrid to be truly usable, much of this uncertainty must be elim- inated.We propose two new Grid monitoring elements, Grid workflow identifiersand consistent component lifecycle events, that will make Gridtroubleshooting easier, and thus make Grids more usable, by simplifyingthe correlation of Grid monitoring data with a particular Gridworkflow.

Gunter, Daniel K.; Jackson, Keith R.; Konerding, David E.; Lee,Jason R.; Tierney, Brian L.

2005-07-01

275

Enabling Campus Grids with Open Science Grid Technology  

NASA Astrophysics Data System (ADS)

The Open Science Grid is a recognized key component of the US national cyber-infrastructure enabling scientific discovery through advanced high throughput computing. The principles and techniques that underlie the Open Science Grid can also be applied to Campus Grids since many of the requirements are the same, even if the implementation technologies differ. We find five requirements for a campus grid: trust relationships, job submission, resource independence, accounting, and data management. The Holland Computing Center's campus grid at the University of Nebraska-Lincoln was designed to fulfill the requirements of a campus grid. A bridging daemon was designed to bring non-Condor clusters into a grid managed by Condor. Condor features which make it possible to bridge Condor sites into a multi-campus grid have been exploited at the Holland Computing Center as well.

Weitzel, Derek; Bockelman, Brian; Fraser, Dan; Pordes, Ruth; Swanson, David

2011-12-01

276

Grid generation research at OSU  

NASA Technical Reports Server (NTRS)

In the last two years, effort was concentrated on: (1) surface modeling; (2) surface grid generation; and (3) 3-D flow space grid generation. The surface modeling shares the same objectives as the surface modeling in computer aided design (CAD), so software available in CAD can in principle be used for solid modeling. Unfortunately, however, the CAD software cannot be easily used in practice for grid generation purposes, because they are not designed to provide appropriate data base for grid generation. Therefore, we started developing a generalized surface modeling software from scratch, that provides the data base for the surface grid generation. Generating surface grid is an important step in generating a 3-D space for flow space. To generate a surface grid on a given surface representation, we developed a unique algorithm that works on any non-smooth surfaces. Once the surface grid is generated, a 3-D space can be generated. For this purpose, we also developed a new algorithm, which is a hybrid of the hyperbolic and the elliptic grid generation methods. With this hybrid method, orthogonality of the grid near the solid boundary can be easily achieved without introducing empirical fudge factors. Work to develop 2-D and 3-D grids for turbomachinery blade geometries was performed, and as an extension of this research we are planning to develop an adaptive grid procedure with an interactive grid environment.

Nakamura, S.

1992-01-01

277

FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking,  

E-print Network

FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking, Equipment, and Technology (powerNET) Testbed OBJECTIVE A lot of interest in research, improvements, and testing surrounds the power grid to these activities. Specifically, » power system equipment is expensive and has a high knowledge barrier

278

Embedding grids into grids: Techniques for large compression ratios  

Microsoft Academic Search

We return to the problem of embedding 2-dimensional (h ?á w ) guest grid graphs into 2dimensional (h ?á w ) host grid graphs, where w < w , and h is the smallest integer such thathw h w . This 2-dimensional problem has many applications in computer science including the simulationof one grid of processors by another of different

John A. Ellis

1996-01-01

279

Grid Interoperability: An Experiment in Bridging Grid Islands  

Microsoft Academic Search

In the past decade Grid computing has matured considerably. A number of groups have built, operated, and expanded large testbed and production Grids. These Grids have inevitably been designed to meet the needs of a limited set of initial stakeholders, resulting in varying and sometimes ad-hoc specifications. As the use of e-Science becomes more common, this inconsistency is increasingly problematic

Blair Bethwaite; David Abramson; Ashley Buckle

2008-01-01

280

Dig That Grid!  

NSDL National Science Digital Library

In this lesson, students will use their knowledge of coordinates and coordinate pairs in a real life situation as they become archaeologists excavating a dig site. They will measure their site, label the grids with correct coordinates and use coordinate pairs to record the location of the artifacts they discover.

Driggers, Diane

2012-06-05

281

APEC Smart Grid Initiative  

SciTech Connect

This brief paper describes the activities of the Asia Pacific Economic Cooperation (APEC) Smart Grid Initiative (ASGI) which is being led by the U.S. and developed by the APEC Energy Working Group. In the paper, I describe the origin of the initiative and briefly mention the four major elements of the initiative along with existing APEC projects which support it.

Bloyd, Cary N.

2012-03-01

282

Metagenomics Smart power grid  

E-print Network

Metagenomics Smart power grid The new weapons workhorse Laser on Mars LOS ALAMOS SCIENCE: Microorganisms in the soil perform services that are essential to the survival of all plant and animal life of these microorganisms are understood by science today. Can we rapidly learn about the other 99 percent? Vibrant Science

283

Condor and the Grid  

Microsoft Academic Search

SUMMARY Since 1984, the Condor project has helped ordinary users to do extraordinary computing. Today, the project continues to explore the social and technical problems of cooperative computing on scales ranging from the desktop to the world-wide computational grid. In this chapter, we provide the history and philosophy of the Condor project and describe how it has interacted with other

Douglas Thain; Todd Tannenbaum; Miron Livny

2002-01-01

284

Condor and the grid  

Microsoft Academic Search

SUMMARY Since 1984, the Condor project has helped ordinary users to do extraordinary computing. Today, the project continues to explore the social and technical problems of cooperative computing on scales ranging from the desktop to the world-wide computational grid. In this chapter, we provide the history and philosophy of the Condor project and describe how it has interacted with other

Douglas Thain; Todd Tannenbaum; Miron Livny

2003-01-01

285

Stability of elastic grid shells  

E-print Network

The elastic grid shell is a solution that combines double curvature and ease of mounting. This structural system, based on the deformation of an initially at grid without shear stiffness was invented more than fifty years ...

Mesnil, Romain, M. Eng. Massachusetts Institute of Technology

2013-01-01

286

Smart Grid - a reliability perspective  

Microsoft Academic Search

Increasing complexity of power grids, growing demand, and requirement for greater grid reliability, security and efficiency as well as environmental and energy sustainability concerns continue to highlight the need for a quantum leap in harnessing communication and information technologies. This leap toward a ¿smarter¿ grid is now widely referred to as \\

Khosrow Moslehi; Ranjit Kumar

2010-01-01

287

Adaptive grid shallow water modeling  

Microsoft Academic Search

Adaptive grid generation procedure is coupled with the solver of the shallow water equations. The theory of harmonic maps is used as a theoretical framework for grid generation. The problem of constructing harmonic coordinates on the surface of the graph of control function is formulated. The projection of these coordinates onto a physical region produces an adaptive-harmonic grid. Modification of

Sergey A. Ivanenko; Galina V. Muratova

2000-01-01

288

Job Scheduling for Computational Grids  

Microsoft Academic Search

Grid computing is a method to execute computational jobs requiring a signifi- cant amount of computing resources and\\/or large sets of data. Contrary to large heteroge- neous distributed systems, a Computational Grid has many independent resource providers with different access policies. In addition to the size of such a Grid, the diversity of those policies leads to a very complex

Uwe Schwiegelshohn; Ramin Yahyapour

2006-01-01

289

Spectral methods on arbitrary grids  

NASA Technical Reports Server (NTRS)

Stable and spectrally accurate numerical methods are constructed on arbitrary grids for partial differential equations. These new methods are equivalent to conventional spectral methods but do not rely on specific grid distributions. Specifically, we show how to implement Legendre Galerkin, Legendre collocation, and Laguerre Galerkin methodology on arbitrary grids.

Carpenter, Mark H.; Gottlieb, David

1995-01-01

290

Enabling Applications on the Grid - A GridLab Overview  

NSDL National Science Digital Library

This paper on computational grid technology is scheduled to be published in the International Journal of High Performance Computing Applications in August 2003. The first part of the paper discusses the great potential of grid computing in scientific and business scenarios, as well as the challenges that must be overcome if it is to be more widely adopted. A specific grid architecture, called GridLab, is initially mentioned, but the second part of the paper goes into more detail about the system's design and implementation. The GridLab project is funded by the European Union.

Allen, Gabrielle.; Davis, Kelly.; Dolkas, Konstantinos N.; Doulamis, Nikolaos D.; Goodale, Tom.; Kielmann, Thilo.

2003-01-01

291

Cloud Computing for the Grid: GridControl: A Software Platform to Support the Smart Grid  

SciTech Connect

GENI Project: Cornell University is creating a new software platform for grid operators called GridControl that will utilize cloud computing to more efficiently control the grid. In a cloud computing system, there are minimal hardware and software demands on users. The user can tap into a network of computers that is housed elsewhere (the cloud) and the network runs computer applications for the user. The user only needs interface software to access all of the cloud’s data resources, which can be as simple as a web browser. Cloud computing can reduce costs, facilitate innovation through sharing, empower users, and improve the overall reliability of a dispersed system. Cornell’s GridControl will focus on 4 elements: delivering the state of the grid to users quickly and reliably; building networked, scalable grid-control software; tailoring services to emerging smart grid uses; and simulating smart grid behavior under various conditions.

None

2012-02-08

292

Workforce needs for smart grid technologies  

Microsoft Academic Search

The electrical power grids are going through some major changes and investments to secure reliable grid operation and more efficient and sustainable energy use. Smart grid technologies are key enablers to develop future grids. Securing a qualified workforce to adapt to the game changers in our industry, deploying smart grid technologies and managing the grid is essential to achieving industry

Damir Novosel

2011-01-01

293

Fas ligand expression by astrocytoma in vivo: maintaining immune privilege in the brain?  

PubMed Central

Astrocytomas are among the most common brain tumors that are usually fatal in their malignant form. They appear to progress without significant impedance from the immune system, despite the presence of intratumoral T cell infiltration. To date, this has been thought to be the result of T cell immunosuppression induced by astrocytoma-derived cytokines. Here, we propose that cell contact-mediated events also play a role, since we demonstrate the in vivo expression of Fas ligand (FasL/CD95L) by human astrocytoma and the efficient killing of Fas-bearing cells by astrocytoma lines in vitro and by tumor cells ex vivo. Functional FasL is expressed by human, mouse, and rat astrocytoma and hence may be a general feature of this nonlymphoid tumor. In the brain, astrocytoma cells can potentially deliver a death signal to Fas+ cells which include infiltrating leukocytes and, paradoxically, astrocytoma cells themselves. The expression of FasL by astrocytoma cells may extend the processes that are postulated to occur in normal brain to maintain immune privilege, since we also show FasL expression by neurons. Overall, our findings suggest that FasL-induced apoptosis by astrocytoma cells may play a significant role in both immunosuppression and the regulation of tumor growth within the central nervous system. PMID:9077524

Saas, P; Walker, P R; Hahne, M; Quiquerez, A L; Schnuriger, V; Perrin, G; French, L; Van Meir, E G; de Tribolet, N; Tschopp, J; Dietrich, P Y

1997-01-01

294

Artificial Immune Privileged Sites as an Enhancement to Immuno-Computing Paradigm  

E-print Network

The immune system is a highly parallel and distributed intelligent system which has learning, memory, and associative capabilities. Artificial Immune System is an evolutionary paradigm inspired by the biological aspects of the immune system of mammals. The immune system can inspire to form new algorithms learning from its course of action. The human immune system has motivated scientists and engineers for finding powerful information processing algorithms that has solved complex engineering problems. This work is the result of an attempt to explore a different perspective of the immune system namely the Immune Privileged Site (IPS) which has the ability to make an exception to different parts of the body by not triggering immune response to some of the foreign agent in these parts of the body. While the complete system is secured by an Immune System at certain times it may be required that the system allows certain activities which may be harmful to other system which is useful to it and learns over a period ...

Chingtham, Tejbanta Singh; Ghose, M K

2011-01-01

295

[Neurosciences and the ravings of the Soviet era. Spanish Republican physicians, a set of privileged witnesses].  

PubMed

This study analyses the links between the Russian and Soviet neurosciences and their Spanish counterpart, especially with regard to the experiences of the Spanish Republican physicians exiled in the USSR. The Russian neurosciences, which date back to the second half of the 19th century, followed a path that ran parallel to the discipline throughout the rest of Europe and finally displayed signs of being influenced by the German and French schools. Important figures include Alexei Kojevnikov and Vladimir Bekhterev in neurology, Sergei Korsakov in psychiatry, Ivan Pavlov and his disciple Piotr Anojin in neurophysiology, Lev Vygotsky and Alexander Luria in neuropsychology, and Nikolai Burdenko in neurosurgery. When the Bolsheviks came to power, they brought with them a progressive conception of health care, which was modified during the Stalinist era to serve political interests, above all in the case of psychiatry. During the first third of the 20th century, Spanish scientists became interested in Pavlov's reflexology and the Soviets took a similar interest in Spanish histology. Among the 4500 Spanish Republicans who emigrated to the USSR because of the Spanish Civil War, there were several dozen physicians who were privileged witnesses of the madness that shook the science and the health care of that period. Relevant names worth citing here from the field of the neurosciences include Juan Planelles and Ramon Alvarez-Buylla in neurophysiology, Federico Pascual and Florencio Villa Landa in psychiatry, Angel Escobio and Maria Perez in neurology, Julian Fuster in neurosurgery and Manuel Arce in neuroimaging. PMID:21780075

Marco-Igual, Miguel

2011-08-16

296

Retinal laser burn-induced neuropathy leads to substance P-dependent loss of ocular immune privilege.  

PubMed

Inflammation in the eye is tightly regulated by multiple mechanisms that together contribute to ocular immune privilege. Many studies have shown that it is very difficult to abrogate the immune privileged mechanism called anterior chamber-associated immune deviation (ACAID). Previously, we showed that retinal laser burn (RLB) to one eye abrogated immune privilege (ACAID) bilaterally for an extended period of time. In an effort to explain the inflammation in the nonburned eye, we postulated that neuronal signals initiated inflammation in the contralateral eye. In this study, we test the role of substance P, a neuroinflamatory peptide, in RLB-induced loss of ACAID. Histological examination of the retina with and without RLB revealed an increase of the substance P-inducible neurokinin 1 receptor (NK1-R) in the retina of first, the burned eye, and then the contralateral eye. Specific antagonists for NK1-R, given locally with Ag within 24 h, but not 3, 5, or 7 d post-RLB treatment, prevented the bilateral loss of ACAID. Substance P knockout (KO) mice retained their ability to develop ACAID post-RLB. These data support the postulate that substance P transmits early inflammatory signals from the RLB eye to the contralateral eye to induce changes to ocular immune privilege and has a central role in the bilateral loss of ACAID. The possibility is raised that blocking of the substance P pathway with NK1-R antagonists postocular trauma may prevent unwanted and perhaps extended consequences of trauma-induced inflammation in the eye. PMID:22745377

Lucas, Kenyatta; Karamichos, Dimitris; Mathew, Rose; Zieske, James D; Stein-Streilein, Joan

2012-08-01

297

17 CFR 240.12f-4 - Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and 16.  

Code of Federal Regulations, 2011 CFR

17 Commodity and Securities Exchanges 3 2011-04-01 2011-04-01 false Exemption of securities admitted to unlisted trading privileges...Section 240.12f-4 Commodity and Securities Exchanges SECURITIES AND...

2011-04-01

298

Gridded electron reversal ionizer  

NASA Technical Reports Server (NTRS)

A gridded electron reversal ionizer forms a three dimensional cloud of zero or near-zero energy electrons in a cavity within a filament structure surrounding a central electrode having holes through which the sample gas, at reduced pressure, enters an elongated reversal volume. The resultant negative ion stream is applied to a mass analyzer. The reduced electron and ion space-charge limitations of this configuration enhances detection sensitivity for material to be detected by electron attachment, such as narcotic and explosive vapors. Positive ions may be generated by generating electrons having a higher energy, sufficient to ionize the target gas and pulsing the grid negative to stop the electron flow and pulsing the extraction aperture positive to draw out the positive ions.

Chutjian, Ara (Inventor)

1993-01-01

299

Constructing the ASCI computational grid  

SciTech Connect

The Accelerated Strategic Computing Initiative (ASCI) computational grid is being constructed to interconnect the high performance computing resources of the nuclear weapons complex. The grid will simplify access to the diverse computing, storage, network, and visualization resources, and will enable the coordinated use of shared resources regardless of location. To match existing hardware platforms, required security services, and current simulation practices, the Globus MetaComputing Toolkit was selected to provide core grid services. The ASCI grid extends Globus functionality by operating as an independent grid, incorporating Kerberos-based security, interfacing to Sandia's Cplant{trademark},and extending job monitoring services. To fully meet ASCI's needs, the architecture layers distributed work management and criteria-driven resource selection services on top of Globus. These services simplify the grid interface by allowing users to simply request ''run code X anywhere''. This paper describes the initial design and prototype of the ASCI grid.

BEIRIGER,JUDY I.; BIVENS,HUGH P.; HUMPHREYS,STEVEN L.; JOHNSON,WILBUR R.; RHEA,RONALD E.

2000-06-01

300

Progress in Grid Generation: From Chimera to DRAGON Grids  

NASA Technical Reports Server (NTRS)

Hybrid grids, composed of structured and unstructured grids, combines the best features of both. The chimera method is a major stepstone toward a hybrid grid from which the present approach is evolved. The chimera grid composes a set of overlapped structured grids which are independently generated and body-fitted, yielding a high quality grid readily accessible for efficient solution schemes. The chimera method has been shown to be efficient to generate a grid about complex geometries and has been demonstrated to deliver accurate aerodynamic prediction of complex flows. While its geometrical flexibility is attractive, interpolation of data in the overlapped regions - which in today's practice in 3D is done in a nonconservative fashion, is not. In the present paper we propose a hybrid grid scheme that maximizes the advantages of the chimera scheme and adapts the strengths of the unstructured grid while at the same time keeps its weaknesses minimal. Like the chimera method, we first divide up the physical domain by a set of structured body-fitted grids which are separately generated and overlaid throughout a complex configuration. To eliminate any pure data manipulation which does not necessarily follow governing equations, we use non-structured grids only to directly replace the region of the arbitrarily overlapped grids. This new adaptation to the chimera thinking is coined the DRAGON grid. The nonstructured grid region sandwiched between the structured grids is limited in size, resulting in only a small increase in memory and computational effort. The DRAGON method has three important advantages: (1) preserving strengths of the chimera grid; (2) eliminating difficulties sometimes encountered in the chimera scheme, such as the orphan points and bad quality of interpolation stencils; and (3) making grid communication in a fully conservative and consistent manner insofar as the governing equations are concerned. To demonstrate its use, the governing equations are discretized using the newly proposed flux scheme, AUSM+, which will be briefly described herein. Numerical tests on representative 2D inviscid flows are given for demonstration. Finally, extension to 3D is underway, only paced by the availability of the 3D unstructured grid generator.

Liou, Meng-Sing; Kao, Kai-Hsiung

1994-01-01

301

Galectin-9-Mediated Protection from Allo-Specific T Cells as a Mechanism of Immune Privilege of Corneal Allografts  

PubMed Central

The eye is an immune-privileged organ, and corneal transplantation is therefore one of the most successful organ transplantation. The immunosuppressive intraocular microenvironment is known as one of the mechanisms underlying immune privilege in the eye. T-cell immunoglobulin and mucin domain (Tim)-3 is a regulatory molecule for T-cell function, and galectin (Gal)-9 is a Tim-3 ligand. We investigated the role of this pathway in establishing the immune-privileged status of corneal allografts in mice. Gal-9 is constitutively expressed on the corneal epithelium, endothelium and iris-ciliary body in normal mouse eyes and eyes bearing surviving allografts, and Tim-3 was expressed on CD8 T cells infiltrating the allografts. Allograft survival in recipients treated with anti-Tim-3 monoclonal antibody (mAb) or anti-Gal-9 mAb was significantly shorter than that in control recipients. In vitro, destruction of corneal endothelial cells by allo-reactive T cells was enhanced when the cornea was pretreated with anti-Gal-9 mAb. Blockade of Tim-3 or Gal-9 did not abolish anterior chamber-associated immune deviation. We propose that constitutive expression of Gal-9 plays an immunosuppressive role in corneal allografts. Gal-9 expressed on corneal endothelial cells protects them from destruction by allo-reactive T cells within the cornea. PMID:23667648

Shimmura-Tomita, Machiko; Wang, Mingcong; Taniguchi, Hiroko; Akiba, Hisaya; Yagita, Hideo; Hori, Junko

2013-01-01

302

GridTool: A surface modeling and grid generation tool  

NASA Technical Reports Server (NTRS)

GridTool is designed around the concept that the surface grids are generated on a set of bi-linear patches. This type of grid generation is quite easy to implement, and it avoids the problems associated with complex CAD surface representations and associated surface parameterizations. However, the resulting surface grids are close to but not on the original CAD surfaces. This problem can be alleviated by projecting the resulting surface grids onto the original CAD surfaces. GridTool is designed primary for unstructured grid generation systems. Currently, GridTool supports VGRID and FELISA systems, and it can be easily extended to support other unstructured grid generation systems. The data in GridTool is stored parametrically so that once the problem is set up, one can modify the surfaces and the entire set of points, curves and patches will be updated automatically. This is very useful in a multidisciplinary design and optimization process. GridTool is written entirely in ANSI 'C', the interface is based on the FORMS library, and the graphics is based on the GL library. The code has been tested successfully on IRIS workstations running IRIX4.0 and above. The memory is allocated dynamically, therefore, memory size will depend on the complexity of geometry/grid. GridTool data structure is based on a link-list structure which allows the required memory to expand and contract dynamically according to the user's data size and action. Data structure contains several types of objects such as points, curves, patches, sources and surfaces. At any given time, there is always an active object which is drawn in magenta, or in their highlighted colors as defined by the resource file which will be discussed later.

Samareh-Abolhassani, Jamshid

1995-01-01

303

Data Management in the GridRPC GridRPC Data Management API  

E-print Network

Data Management in the GridRPC Issues Conclusion GridRPC Data Management API Implementations, Le Mahec, Nakada GridRPC DM API: Implem. and Interop. Issues (1/13) #12;Data Management in the GridRPC Issues Conclusion Goal GridRPC DM types: Reminder 1 Data Management in the GridRPC Goal GridRPC DM types

Caniou, Yves

304

Evaluating the Information Power Grid using the NAS Grid Benchmarks  

NASA Technical Reports Server (NTRS)

The NAS Grid Benchmarks (NGB) are a collection of synthetic distributed applications designed to rate the performance and functionality of computational grids. We compare several implementations of the NGB to determine programmability and efficiency of NASA's Information Power Grid (IPG), whose services are mostly based on the Globus Toolkit. We report on the overheads involved in porting existing NGB reference implementations to the IPG. No changes were made to the component tasks of the NGB can still be improved.

VanderWijngaartm Rob F.; Frumkin, Michael A.

2004-01-01

305

Journal of Grid Computing From Grids to Cloud Federations  

E-print Network

1 23 Journal of Grid Computing From Grids to Cloud Federations ISSN 1570-7873 Volume 11 Number 1 J Grid Computing (2013) 11:63-81 DOI 10.1007/s10723-012-9238-z Cloud Platform Datastore Support Navraj Computing (2013) 11:63­81 DOI 10.1007/s10723-012-9238-z Cloud Platform Datastore Support Navraj Chohan

Krintz, Chandra

306

The Volume Grid Manipulator (VGM): A Grid Reusability Tool  

NASA Technical Reports Server (NTRS)

This document is a manual describing how to use the Volume Grid Manipulation (VGM) software. The code is specifically designed to alter or manipulate existing surface and volume structured grids to improve grid quality through the reduction of grid line skewness, removal of negative volumes, and adaption of surface and volume grids to flow field gradients. The software uses a command language to perform all manipulations thereby offering the capability of executing multiple manipulations on a single grid during an execution of the code. The command language can be input to the VGM code by a UNIX style redirected file, or interactively while the code is executing. The manual consists of 14 sections. The first is an introduction to grid manipulation; where it is most applicable and where the strengths of such software can be utilized. The next two sections describe the memory management and the manipulation command language. The following 8 sections describe simple and complex manipulations that can be used in conjunction with one another to smooth, adapt, and reuse existing grids for various computations. These are accompanied by a tutorial section that describes how to use the commands and manipulations to solve actual grid generation problems. The last two sections are a command reference guide and trouble shooting sections to aid in the use of the code as well as describe problems associated with generated scripts for manipulation control.

Alter, Stephen J.

1997-01-01

307

Lichen planopilaris is characterized by immune privilege collapse of the hair follicle's epithelial stem cell niche.  

PubMed

Lichen planopilaris (LPP) is a chronic inflammatory disease of unknown pathogenesis that leads to permanent hair loss. Whilst destruction of epithelial hair follicle stem cells (eHFSCs) that reside in an immunologically protected niche of the HF epithelium, the bulge, is a likely key event in LPP pathogenesis, this remains to be demonstrated. We have tested the hypotheses that bulge immune privilege (IP) collapse and inflammation-induced eHFSC death are key components in the pathogenesis of LPP. Biopsies of lesional and non-lesional scalp skin from adult LPP patients (n = 42) were analysed by quantitative (immuno)histomorphometry, real-time quantitative polymerase chain reaction (qRT-PCR), laser capture microdissection and microarray analysis, or skin organ culture. At both the protein and transcriptional level, lesional LPP HFs showed evidence for bulge IP collapse (ie increased expression of MHC class I and II, ?2microglobulin; reduced TGF?2 and CD200 expression). This was accompanied by a Th1-biased cytotoxic T cell response (ie increased CD8(+) GranzymeB(+) T cells and CD123(+) plasmacytoid dendritic cells, with increased CXCR3 expression) and increased expression of interferon-inducible chemokines (CXCL9/10/11). Interestingly, lesional LPP eHFSCs showed both increased proliferation and apoptosis in situ. Microarray analysis revealed a loss of eHFSC signatures and increased expression of T cell activation/binding markers in active LPP, while bulge PPAR? transcription was unaltered compared to non-lesional LPP HFs. In organ culture of non-lesional LPP skin, interferon-? (IFN?) induced bulge IP collapse. LPP is an excellent model disease for studying and preventing immune destruction of human epithelial stem cells in situ. These novel findings raise the possibility that LPP represents an autoimmune disease in whose pathogenesis IFN?-induced bulge IP collapse plays an important role. Therapeutically, bulge IP protection/restoration may help to better manage this highly treatment-resistant cicatricial alopecia. PMID:23788005

Harries, Matthew J; Meyer, Katja; Chaudhry, Iskander; E Kloepper, Jennifer; Poblet, Enrique; Griffiths, Christopher Em; Paus, Ralf

2013-10-01

308

A grid quality manipulation system  

NASA Technical Reports Server (NTRS)

A grid quality manipulation system is described. The elements of the system are the measures by which quality is assessed, the computer graphic display of those measures, and the local grid manipulation to provide a response to the viewed quality indication. The display is an overlaid composite where the region is first covered with colors to reflect the values of the quality indicator, the grid is then placed on top of those colors, and finally a control net is placed on top of everything. The net represents the grid in terms of the control point form of algebraic grid generation. As a control point is moved, both the grid and the colored quality measures also move. This is a real time dynamic action so that the consequences of the manipulation are continuously seen.

Lu, Ning; Eiseman, Peter R.

1991-01-01

309

Adventures in Computational Grids  

NASA Technical Reports Server (NTRS)

Sometimes one supercomputer is not enough. Or your local supercomputers are busy, or not configured for your job. Or you don't have any supercomputers. You might be trying to simulate worldwide weather changes in real time, requiring more compute power than you could get from any one machine. Or you might be collecting microbiological samples on an island, and need to examine them with a special microscope located on the other side of the continent. These are the times when you need a computational grid.

Walatka, Pamela P.; Biegel, Bryan A. (Technical Monitor)

2002-01-01

310

On unstructured grids and solvers  

NASA Technical Reports Server (NTRS)

The fundamentals and the state-of-the-art technology for unstructured grids and solvers are highlighted. Algorithms and techniques pertinent to mesh generation are discussed. It is shown that grid generation and grid manipulation schemes rely on fast multidimensional searching. Flow solution techniques for the Euler equations, which can be derived from the integral form of the equations are discussed. Sample calculations are also provided.

Barth, T. J.

1990-01-01

311

Grid Integration of Robotic Telescopes  

E-print Network

Robotic telescopes and grid technology have made significant progress in recent years. Both innovations offer important advantages over conventional technologies, particularly in combination with one another. Here, we introduce robotic telescopes used by the Astrophysical Institute Potsdam as ideal instruments for building a robotic telescope network. We also discuss the grid architecture and protocols facilitating the network integration that is being developed by the German AstroGrid-D project. Finally, we present three user interfaces employed for this purpose.

F. Breitling; T. Granzer; H. Enke

2009-03-23

312

Transistor oscillator and amplifier grids  

Microsoft Academic Search

Although quasi-optical techniques are applicable to a large variety of solid-state devices, special attention is given to transistors, which are attractive because they can be used as either amplifiers or oscillators. Experimental results for MESFET bar-grid and planar grid oscillators are presented. A MESFET grid amplifier that receives only vertically polarized waves at the input and radiates horizontally polarized waves

ROBERT M. WEIKLE; MOONIL KIM; JONATHAN B. HACKER; MICHAEL P. DE LISIO; ZOYA B. POPOVIC; DAVID B. RUTLEDGE

1992-01-01

313

The edutain@grid Project  

Microsoft Academic Search

edutain@grid is an exciting and ground breaking new project making use of Grid technology. The project will identify and define\\u000a a new class of applications that are highly significant for Grid computing but have not been studied in the past, which we\\u000a characterise as Real-Time Online Interactive Applications (ROIA). The distinctive features that make ROIA unique include large\\u000a user concurrency

Thomas Fahringer; Christoph Anthes; Alexis Arragon; Arton Lipaj; Jens Müller-iden; Christopher J. Rawlings; Radu Prodan; Mike Surridge

2007-01-01

314

Introduction to CamGrid  

E-print Network

details (2) Responsibility of individual pools to authenticate local submitters. Need to trust root on remote machine, especially for Standard Universe. There’s no shared FS across CamGrid, but Parrot (from the Condor project) is a nice user-space file... Introduction to CamGrid Mark Calleja Cambridge eScience Centre www.escience.cam.ac.uk Why grids? The idea comes from electricity grids: you don’t care which power station your kettle’s using. Also, there are lots of underutilised resources around...

Calleja, Mark

2008-06-26

315

LDCM Grid Prototype (LGP)  

NASA Technical Reports Server (NTRS)

The LGP successfully demonstrated that grid technology could be used to create a collaboration among research scientists, their science development machines, and distributed data to create a science production system in a nationally distributed environment. Grid technology provides a low cost and effective method of enabling production of science products by the science community. To demonstrate this, the LGP partnered with NASA GSFC scientists and used their existing science algorithms to generate virtual Landsat-like data products using distributed data resources. LGP created 48 output composite scenes with 4 input scenes each for a total of 192 scienes processed in parallel. The demonstration took 12 hours, which beat the requirement by almost 50 percent, well within the LDCM requirement to process 250 scenes per day. The LGP project also showed the successful use of workflow tools to automate the processing. Investing in this technology has led to funding for a ROSES ACCESS proposal. The proposal intends to enable an expert science user to produce products from a number of similar distributed instrument data sets using the Land Cover Change Community-based Processing and Analysis System (LC-ComPS) Toolbox. The LC-ComPS Toolbox is a collection of science algorithms that enable the generation of data with ground resolution on the order of Landsat-class instruments.

Weinstein, Beth; Lubelczyk, Jeff

2006-01-01

316

Grid Task Execution  

NASA Technical Reports Server (NTRS)

IPG Execution Service is a framework that reliably executes complex jobs on a computational grid, and is part of the IPG service architecture designed to support location-independent computing. The new grid service enables users to describe the platform on which they need a job to run, which allows the service to locate the desired platform, configure it for the required application, and execute the job. After a job is submitted, users can monitor it through periodic notifications, or through queries. Each job consists of a set of tasks that performs actions such as executing applications and managing data. Each task is executed based on a starting condition that is an expression of the states of other tasks. This formulation allows tasks to be executed in parallel, and also allows a user to specify tasks to execute when other tasks succeed, fail, or are canceled. The two core components of the Execution Service are the Task Database, which stores tasks that have been submitted for execution, and the Task Manager, which executes tasks in the proper order, based on the user-specified starting conditions, and avoids overloading local and remote resources while executing tasks.

Hu, Chaumin

2007-01-01

317

NAS Grid Benchmarks: A Tool for Grid Space Exploration  

Microsoft Academic Search

We present a benchmark suite for computational grids in this paper. It is based on the NAS Parallel Benchmarks (NPB) and is called the NAS Grid Benchmark (NGB). We present NGB as a data flow graph encapsulating an instance of an NPB code in each graph node, which communicates with other nodes by sending\\/receiving initialization data. These nodes may be

Michael A. Frumkin; Rob F. Van Der Wijngaart

2001-01-01

318

Data mining on grids. Maarten Altorf  

E-print Network

Miner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.2 WekaG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.3 Weka4WS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.4 DataMiningGrid . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.5 GridWeka 2. The follow- ing applications are taken into consideration: GridMiner, WekaG, Weka4WS, DataMiningGrid and GridWeka

Emmerich, Michael

319

Smart Grid Technologies: Communication Technologies and Standards  

Microsoft Academic Search

For 100 years, there has been no change in the basic structure of the electrical power grid. Experiences have shown that the hierarchical, centrally controlled grid of the 20th Century is ill-suited to the needs of the 21st Century. To address the challenges of the existing power grid, the new concept of smart grid has emerged. The smart grid can

Vehbi C. Gungor; Dilan Sahin; Taskin Kocak; Salih Ergut; Concettina Buccella; Carlo Cecati; Gerhard P. Hancke

2011-01-01

320

NAS Grid Benchmarks: A Tool for Grid Space Exploration  

NASA Technical Reports Server (NTRS)

We present an approach for benchmarking services provided by computational Grids. It is based on the NAS Parallel Benchmarks (NPB) and is called NAS Grid Benchmark (NGB) in this paper. We present NGB as a data flow graph encapsulating an instance of an NPB code in each graph node, which communicates with other nodes by sending/receiving initialization data. These nodes may be mapped to the same or different Grid machines. Like NPB, NGB will specify several different classes (problem sizes). NGB also specifies the generic Grid services sufficient for running the bench-mark. The implementor has the freedom to choose any specific Grid environment. However, we describe a reference implementation in Java, and present some scenarios for using NGB.

Frumkin, Michael; VanderWijngaart, Rob F.; Biegel, Bryan (Technical Monitor)

2001-01-01

321

OGC and Grid Interoperability in enviroGRIDS Project  

NASA Astrophysics Data System (ADS)

EnviroGRIDS (Black Sea Catchment Observation and Assessment System supporting Sustainable Development) [1] is a 4-years FP7 Project aiming to address the subjects of ecologically unsustainable development and inadequate resource management. The project develops a Spatial Data Infrastructure of the Black Sea Catchment region. The geospatial technologies offer very specialized functionality for Earth Science oriented applications as well as the Grid oriented technology that is able to support distributed and parallel processing. One challenge of the enviroGRIDS project is the interoperability between geospatial and Grid infrastructures by providing the basic and the extended features of the both technologies. The geospatial interoperability technology has been promoted as a way of dealing with large volumes of geospatial data in distributed environments through the development of interoperable Web service specifications proposed by the Open Geospatial Consortium (OGC), with applications spread across multiple fields but especially in Earth observation research. Due to the huge volumes of data available in the geospatial domain and the additional introduced issues (data management, secure data transfer, data distribution and data computation), the need for an infrastructure capable to manage all those problems becomes an important aspect. The Grid promotes and facilitates the secure interoperations of geospatial heterogeneous distributed data within a distributed environment, the creation and management of large distributed computational jobs and assures a security level for communication and transfer of messages based on certificates. This presentation analysis and discusses the most significant use cases for enabling the OGC Web services interoperability with the Grid environment and focuses on the description and implementation of the most promising one. In these use cases we give a special attention to issues such as: the relations between computational grid and the OGC Web service protocols, the advantages offered by the Grid technology - such as providing a secure interoperability between the distributed geospatial resource -and the issues introduced by the integration of distributed geospatial data in a secure environment: data and service discovery, management, access and computation. enviroGRIDS project proposes a new architecture which allows a flexible and scalable approach for integrating the geospatial domain represented by the OGC Web services with the Grid domain represented by the gLite middleware. The parallelism offered by the Grid technology is discussed and explored at the data level, management level and computation level. The analysis is carried out for OGC Web service interoperability in general but specific details are emphasized for Web Map Service (WMS), Web Feature Service (WFS), Web Coverage Service (WCS), Web Processing Service (WPS) and Catalog Service for Web (CSW). Issues regarding the mapping and the interoperability between the OGC and the Grid standards and protocols are analyzed as they are the base in solving the communication problems between the two environments: grid and geospatial. The presetation mainly highlights how the Grid environment and Grid applications capabilities can be extended and utilized in geospatial interoperability. Interoperability between geospatial and Grid infrastructures provides features such as the specific geospatial complex functionality and the high power computation and security of the Grid, high spatial model resolution and geographical area covering, flexible combination and interoperability of the geographical models. According with the Service Oriented Architecture concepts and requirements of interoperability between geospatial and Grid infrastructures each of the main functionality is visible from enviroGRIDS Portal and consequently, by the end user applications such as Decision Maker/Citizen oriented Applications. The enviroGRIDS portal is the single way of the user to get into the system and the portal faces a unique style of the graphical user in

Gorgan, Dorian; Rodila, Denisa; Bacu, Victor; Giuliani, Gregory; Ray, Nicolas

2010-05-01

322

LAPS Grid generation and adaptation  

NASA Astrophysics Data System (ADS)

LAPS uses a common-data framework in which a general purpose grid generation and adaptation package in toroidal and simply connected domains is implemented. The initial focus is on implementing the Winslow/Laplace-Beltrami method for generating non-overlapping block structured grids. This is to be followed by a grid adaptation scheme based on Monge-Kantorovich optimal transport method [Delzanno et al., J. Comput. Phys,227 (2008), 9841-9864], that equidistributes application-specified error. As an initial set of applications, we will lay out grids for an axisymmetric mirror, a field reversed configuration, and an entire poloidal cross section of a tokamak plasma reconstructed from a CMOD experimental shot. These grids will then be used for computing the plasma equilibrium and transport in accompanying presentations. A key issue for Monge-Kantorovich grid optimization is the choice of error or monitor function for equi-distribution. We will compare the Operator Recovery Error Source Detector (ORESD) [Lapenta, Int. J. Num. Meth. Eng,59 (2004) 2065-2087], the Tau method and a strategy based on the grid coarsening [Zhang et al., AIAA J,39 (2001) 1706-1715] to find an ``optimal'' grid.

Pagliantini, Cecilia; Delzanno, Gia Luca; Guo, Zehua; Srinivasan, Bhuvana; Tang, Xianzhu; Chacon, Luis

2011-11-01

323

Smart Grid & Security [Guest Editoral  

Microsoft Academic Search

THERE IS A MAJOR GROWTH IN electrical and computer engineering research focused squarely on what has become known as the smart grid. While formal definitions of the smart grid do exist, the concept has grown to include technologies that span virtually all areas of electrical and computer engineering impacting energy sustainability, consumer response, electrification of transportation, and related areas. This

Manimaran Govindarasu; Peter Sauer

2012-01-01

324

Intelligent automated surface grid generation  

NASA Technical Reports Server (NTRS)

The goal of our research is to produce a flexible, general grid generator for automated use by other programs, such as numerical optimizers. The current trend in the gridding field is toward interactive gridding. Interactive gridding more readily taps into the spatial reasoning abilities of the human user through the use of a graphical interface with a mouse. However, a sometimes fruitful approach to generating new designs is to apply an optimizer with shape modification operators to improve an initial design. In order for this approach to be useful, the optimizer must be able to automatically grid and evaluate the candidate designs. This paper describes and intelligent gridder that is capable of analyzing the topology of the spatial domain and predicting approximate physical behaviors based on the geometry of the spatial domain to automatically generate grids for computational fluid dynamics simulators. Typically gridding programs are given a partitioning of the spatial domain to assist the gridder. Our gridder is capable of performing this partitioning. This enables the gridder to automatically grid spatial domains of wide range of configurations.

Yao, Ke-Thia; Gelsey, Andrew

1995-01-01

325

Smart grid and electric transportation  

Microsoft Academic Search

The modern electric power grid with wind energy is a complex adaptive system under semiautonomous distributed control. It is spatially and temporally complex, non-convex, nonlinear and nonstationary with a lot of uncertainties. The integration of plug-in hybrid and electric vehicles increases the complexity and challenges to the various controllers at all levels of the power grid. Charging large number of

G. K. Venayagamoorthy

2009-01-01

326

TIGER: Turbomachinery interactive grid generation  

NASA Technical Reports Server (NTRS)

A three dimensional, interactive grid generation code, TIGER, is being developed for analysis of flows around ducted or unducted propellers. TIGER is a customized grid generator that combines new technology with methods from general grid generation codes. The code generates multiple block, structured grids around multiple blade rows with a hub and shroud for either C grid or H grid topologies. The code is intended for use with a Euler/Navier-Stokes solver also being developed, but is general enough for use with other flow solvers. TIGER features a silicon graphics interactive graphics environment that displays a pop-up window, graphics window, and text window. The geometry is read as a discrete set of points with options for several industrial standard formats and NASA standard formats. Various splines are available for defining the surface geometries. Grid generation is done either interactively or through a batch mode operation using history files from a previously generated grid. The batch mode operation can be done either with a graphical display of the interactive session or with no graphics so that the code can be run on another computer system. Run time can be significantly reduced by running on a Cray-YMP.

Soni, Bharat K.; Shih, Ming-Hsin; Janus, J. Mark

1992-01-01

327

A Brief Analysis on Differences of Risk Assessment Between Smart Grid and Traditional Power Grid  

Microsoft Academic Search

Smart grid is the next generation power grid development trend. Discuss the smart grid risk assessment system and risk control measurement using the latest self-healing concept in smart grid is of great importance. The paper first reviews the traditional power grid risk assessment development course, then analyzes and compares the differences of risk assessment process between smart grid and traditional

Hui Hou; Jianzhong Zhou; Yongchuan Zhang; Xiongkai He

2011-01-01

328

Practice-centred evaluation and the privileging of care in health information technology evaluation  

PubMed Central

Background Electronic Patient Records (EPRs) and telemedicine are positioned by policymakers as health information technologies that are integral to achieving improved clinical outcomes and efficiency savings. However, evaluating the extent to which these aims are met poses distinct evaluation challenges, particularly where clinical and cost outcomes form the sole focus of evaluation design. We propose that a practice-centred approach to evaluation - in which those whose day-to-day care practice is altered (or not) by the introduction of new technologies are placed at the centre of evaluation efforts – can complement and in some instances offer advantages over, outcome-centric evaluation models. Methods We carried out a regional programme of innovation in renal services where a participative approach was taken to the introduction of new technologies, including: a regional EPR system and a system to support video clinics. An ‘action learning’ approach was taken to procurement, pre-implementation planning, implementation, ongoing development and evaluation. Participants included clinicians, technology specialists, patients and external academic researchers. Whilst undergoing these activities we asked: how can a practice-centred approach be embedded into evaluation of health information technologies? Discussion Organising EPR and telemedicine evaluation around predetermined outcome measures alone can be impractical given the complex and contingent nature of such projects. It also limits the extent to which unforeseen outcomes and new capabilities are recognised. Such evaluations often fail to improve understanding of ‘when’ and ‘under what conditions’ technology-enabled service improvements are realised, and crucially, how such innovation improves care. Summary Our contribution, drawn from our experience of the case study provided, is a protocol for practice-centred, participative evaluation of technology in the clinical setting that privileges care. In this context ‘practice-centred’ evaluation acts as a scalable, coordinating framework for evaluation that recognises health information technology supported care as an achievement that is contingent and ongoing. We argue that if complex programmes of technology-enabled service innovation are understood in terms of their contribution to patient care and supported by participative, capability-building evaluation methodologies, conditions are created for practitioners and patients to realise the potential of technologies and make substantive contributions to the evidence base underpinning health innovation programmes. PMID:24903604

2014-01-01

329

Computational models of grid cells.  

PubMed

Grid cells are space-modulated neurons with periodic firing fields. In moving animals, the multiple firing fields of an individual grid cell form a triangular pattern tiling the entire space available to the animal. Collectively, grid cells are thought to provide a context-independent metric representation of the local environment. Since the discovery of grid cells in 2005, a number of models have been proposed to explain the formation of spatially repetitive firing patterns as well as the conversion of these signals to place signals one synapse downstream in the hippocampus. The present article reviews the most recent developments in our understanding of how grid patterns are generated, maintained, and transformed, with particular emphasis on second-generation computational models that have emerged during the past 2-3 years in response to criticism and new data. PMID:21867877

Giocomo, Lisa M; Moser, May-Britt; Moser, Edvard I

2011-08-25

330

ROV Grid Search  

NSDL National Science Digital Library

This activity will show students how a grid search is conducted by remotely operated vehicles (ROVs). They will learn that in order to locate target sites, underwater camera sleds and ROVs must often follow a well-defined search pattern. Using methodical sweeping movements, these craft will locate objects that might otherwise be overlooked if a more random searching method was employed. In this activity students get to create a search pattern that will be used to uncover hidden targets. It will offer students an experience that recreates the remote exploration of the sea bottom, a hands-on activity using a remote-controlled vehicle, and an exercise in uncovering targets through methodical searching.

Dispezio, Michael

331

77 FR 38768 - Smart Grid Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...National Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...this meeting are to review updates on the Smart Grid Interoperability Panel...

2012-06-29

332

76 FR 12711 - Smart Grid Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...National Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...The final agenda will be posted on the Smart Grid Web site at...

2011-03-08

333

76 FR 46279 - Smart Grid Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...National Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: Department...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...Office of the National Coordinator for Smart Grid Interoperability, National...

2011-08-02

334

76 FR 70412 - Smart Grid Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...National Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...The final agenda will be posted on the Smart Grid Web site at...

2011-11-14

335

75 FR 55306 - Smart Grid Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...National Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...members and provide an update on NIST's Smart Grid program. The agenda may change...

2010-09-10

336

Grid Programming in Java and Python  

NSDL National Science Digital Library

Introduction to Grids, the Globus Toolkit, and the Commodity Grid (CoG) Kit. Using and programming grids with the Java and Python CoG Kits, including secure access to remote resources, remote job submission and data access.

Gregor von Laszewski

337

From the Grid to the Smart Grid, Topologically  

E-print Network

The Smart Grid is not just about the digitalization of the Power Grid. In its more visionary acceptation, it is a model of energy management in which the users are engaged in producing energy as well as consuming it, while having information systems fully aware of the energy demand-response of the network and of dynamically varying prices. A natural question is then: to make the Smart Grid a reality will the Distribution Grid have to be updated? We assume a positive answer to the question and we consider the lower layers of Medium and Low Voltage to be the most affected by the change. In our previous work, we have analyzed samples of the Dutch Distribution Grid in our previous work and we have considered possible evolutions of these using synthetic topologies modeled after studies of complex systems in other technological domains in another previous work. In this paper, we take an extra important further step by defining a methodology for evolving any existing physical Power Grid to a good Smart Grid model th...

Pagani, Giuliano Andrea

2013-01-01

338

Smart Grid Status and Metrics Report  

SciTech Connect

To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. It measures 21 metrics to provide insight into the grid’s capacity to embody these characteristics. This report looks across a spectrum of smart grid concerns to measure the status of smart grid deployment and impacts.

Balducci, Patrick J.; Weimar, Mark R.; Kirkham, Harold

2014-07-01

339

Density distribution based interpolated grid for DSMC  

NASA Astrophysics Data System (ADS)

The use of adaptive grid significantly reduces the overall runtime and gives a more physically realistic collision implementation of the Direct Simulation Monte Carlo(DSMC) method. The present work proposes a new grid scheme, Interpolated Grid(IG), in which the Kumaraswamy distribution is used to fit the density distribution. The grid is constructed in a manner that each cell contains equal number of particles. The creation of the Interpolated Grid and particle location in the grid cells have negligible time penalty associated with it. When compared to the Adaptive Mesh Refinement(AMR) grids, the Interpolated grid are easier to implement with lesser computational runtime.

Mankodi, Tapan K.; Bhandarkar, Upendra V.; Puranik, Bhalchandra P.

2014-12-01

340

Does the granting of legal privileges as an indigenous people help to reduce health disparities? Evidence from New Zealand and Malaysia.  

PubMed

Both the Maori of New Zealand and the Orang Asli of Malaysia are indigenous peoples who have been subjected to prejudice, discrimination and displacement in its various forms by other ethnic groups in their respective countries. However, owing to changes in the socio-political climate, they have been granted rights (including legal privileges) in more recent times. Data pertaining to the health and socio-economic status of the Maori and the Orang Asli are analysed to see if the granting of legal privileges has made any difference for the two communities. One conclusion is that legal privileges (and the granting of special status) do not appear to work well in terms of reducing health and socio-economic gaps. PMID:20443525

Phua, Kai-Lit

2009-11-01

341

Europe and ESTRO moving East. A story of betrayal and redemption—Candid observations by a privileged witness  

PubMed Central

After briefly looking into the dramatic twist of history that caused Central- and Eastern Europe to be separated from the West, the author observes the impact of 40 years of cold war and isolation on the state of radiotherapy (RT) in Central Europe. From her privileged position as a staff member in charge of public relations and society development at the European Society for Therapeutic Radiology and Oncology (ESTRO), she witnesses and helps drive the “rapprochement” between radiation oncology professionals from both sides of the former iron curtain. Thanks to substantial support from target tailored EU projects, ESTRO was in a position to give a powerful impulse to the re-integration of Central European RT in the mainstream of European health care. The author describes from her own and privileged perspective the excitement of discovering the rich heritage of a shared common past and expresses her concern that in the dynamic repositioning of Europe's point of gravity towards the East, the multiple but still fragile links between Central- and West European radiotherapy, tied within ESTRO, should not get dissolved in transition. PMID:24936314

Heeren, Germaine

2013-01-01

342

A Java commodity grid kit.  

SciTech Connect

In this paper we report on the features of the Java Commodity Grid Kit. The Java CoG Kit provides middleware for accessing Grid functionality from the Java framework. Java CoG Kit middleware is general enough to design a variety of advanced Grid applications with quite different user requirements. Access to the Grid is established via Globus protocols, allowing the Java CoG Kit to communicate also with the C Globus reference implementation. Thus, the Java CoG Kit provides Grid developers with the ability to utilize the Grid, as well as numerous additional libraries and frameworks developed by the Java community to enable network, Internet, enterprise, and peer-to peer computing. A variety of projects have successfully used the client libraries of the Java CoG Kit to access Grids driven by the C Globus software. In this paper we also report on the efforts to develop server side Java CoG Kit components. As part of this research we have implemented a prototype pure Java resource management system that enables one to run Globus jobs on platforms on which a Java virtual machine is supported, including Windows NT machines.

von Laszewski, G.; Foster, I.; Gawor, J.; Lane, P.; Mathematics and Computer Science

2001-07-01

343

Running medical image analysis on GridFactory desktop grid.  

PubMed

At the Geneva University Hospitals work is in progress to establish a computing facility for medical image analysis, potentially using several hundreds of desktop computers. Typically, hospitals do not have a computer infrastructure dedicated to research, nor can the data leave the hospital network for the reasons of privacy. For this purpose, a novel batch system called GridFactory has been tested along-side with the well-known batch system Condor. GridFactory's main benefits, compared to other batch systems, lie in its virtualization support and firewall friendliness. The tests involved running visual feature extraction from 50,000 anonymized medical images on a small local grid of 20 desktop computers. A comparisons with a Condor based batch system in the same computers is then presented. The performance of GridFactory is found satisfactory. PMID:19593040

Orellana, Frederik; Niinimaki, Marko; Zhou, Xin; Rosendahl, Peter; Müller, Henning; Waananen, Anders

2009-01-01

344

Grid flexibility and patching techniques  

NASA Technical Reports Server (NTRS)

The numerical determination of combustor flowfields is of great value to the combustor designer. An a priori knowledge of the flow behavior can speed the combustor design process and reduce the number of experimental test rigs required to arrive at an optimal design. Even 2-D steady incompressible isothermal flow predictions are of use; many codes of this kind are available, each employing different techniques to surmount the difficulties arising from the nonlinearity of the governing equations and from typically irregular combustor geometries. Mapping techniques (algebraic and elliptic PDE), and adaptive grid methods (both multi-grid and grid embedding) as applied to axisymmetric combustors are discussed.

Keith, T. G.; Smith, L. W.; Yung, C. N.; Barthelson, S. H.; Dewitt, K. J.

1984-01-01

345

Grid Visualization Tool  

NASA Technical Reports Server (NTRS)

The Grid Visualization Tool (GVT) is a computer program for displaying the path of a mobile robotic explorer (rover) on a terrain map. The GVT reads a map-data file in either portable graymap (PGM) or portable pixmap (PPM) format, representing a gray-scale or color map image, respectively. The GVT also accepts input from path-planning and activity-planning software. From these inputs, the GVT generates a map overlaid with one or more rover path(s), waypoints, locations of targets to be explored, and/or target-status information (indicating success or failure in exploring each target). The display can also indicate different types of paths or path segments, such as the path actually traveled versus a planned path or the path traveled to the present position versus planned future movement along a path. The program provides for updating of the display in real time to facilitate visualization of progress. The size of the display and the map scale can be changed as desired by the user. The GVT was written in the C++ language using the Open Graphics Library (OpenGL) software. It has been compiled for both Sun Solaris and Linux operating systems.

Chouinard, Caroline; Fisher, Forest; Estlin, Tara; Gaines, Daniel; Schaffer, Steven

2005-01-01

346

Symbolic Constraint Maintenance Grid  

NASA Technical Reports Server (NTRS)

Version 3.1 of Symbolic Constraint Maintenance Grid (SCMG) is a software system that provides a general conceptual framework for utilizing pre-existing programming techniques to perform symbolic transformations of data. SCMG also provides a language (and an associated communication method and protocol) for representing constraints on the original non-symbolic data. SCMG provides a facility for exchanging information between numeric and symbolic components without knowing the details of the components themselves. In essence, it integrates symbolic software tools (for diagnosis, prognosis, and planning) with non-artificial-intelligence software. SCMG executes a process of symbolic summarization and monitoring of continuous time series data that are being abstractly represented as symbolic templates of information exchange. This summarization process enables such symbolic- reasoning computing systems as artificial- intelligence planning systems to evaluate the significance and effects of channels of data more efficiently than would otherwise be possible. As a result of the increased efficiency in representation, reasoning software can monitor more channels and is thus able to perform monitoring and control functions more effectively.

James, Mark

2006-01-01

347

Grid Computing Lecture - Job Management  

NSDL National Science Digital Library

Grid Computing Lecture~~Job management: Job submission, Resource management, Globus Resource Allocation Manager (GRAM), GT4 commands, job description languages (RSL/RSL-2/ JDD/JSDL),syntax and examples, input/output.

Ferner, Clayton; Wilkinson, Barry

2011-07-05

348

Grid Computing Lecture - System Infrastructure  

NSDL National Science Digital Library

Grid Computing Lecture~~System Infrastructure: Web services, Background information. history, remote procedure calls, Service-Oriented Architecture (SOA), service registry, WSDL, WSDD, Web service implementation, SOAP, containers, stubs, code ...

Ferner, Clayton; Wilkinson, Barry

2011-07-05

349

Grid Pricing of Fed Cattle  

E-print Network

There are several value-based fed cattle pricing systems, including formula pricing, price grids and alliances. This publication describes the different cattle pricing methods and helps you decide which is best for you....

Schroeder, Ted C.; Hogan, Robert J.; Anderson, David P.

2009-03-02

350

NASA Wingtip Code Validation Grid  

NASA Technical Reports Server (NTRS)

I have been contacted by Alan Celic to request the computational fluid dynamics (CFD) grid file for the NASA Wingtip CFD validation case. Alan is currently a Ph.D. student at the University of Stuttgard in Germany and spent a year here at Ames Research Center (ARC) as an Ames Associate. This case is a standard validation case studied by many within the U.S. The case is of the flow around a rectangular wing with a rounded wing tip. The airfoil is a NACA 0012. There is nothing special or unusual about the geometry or the grid file. The grid file is a single-zone grid with 2.5 million points. This geometry is generic and is not similar to any currently flying vehicle. All of the results published by NASA, as part of this study, (completed in 1995) are currently in the public domain.

Zilliac, Greg; Mariani, Jennifer Dacles

1995-01-01

351

Smart Wire Grid: Resisting Expectations  

ScienceCinema

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-04-09

352

Smart Wire Grid: Resisting Expectations  

SciTech Connect

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-03-03

353

Networks, smart grids: new model for synchronization  

E-print Network

- 1 - Networks, smart grids: new model for synchronization May 21, 2013 Networks of individual scenarios and in smart grid applications. "Smart grid" refers to technology to modernize utility electricity in a volatile smart grid scenario that included fluctuating loads with random power demand, renewable energy

354

Features of the Java Commodity Grid Kit  

Microsoft Academic Search

SUMMARY In this paper we report on the features of the Java Commodity Grid Kit. The Java CoG Kit provides middleware for accessing Grid functionality from the Java framework. Java CoG Kit middleware is general enough to design a variety of advanced Grid applications with quite different user requirements. Access to the Grid is established via Globus protocols, allowing the

Gregor Von Laszewski; Jarek Gawor; Nell Rehn; Michael Russell

2002-01-01

355

Brookhaven National Laboratory Smarter Grid Centers  

E-print Network

of electric power · Ensure the security of the Smart Grid and implement the biggest energy technology (Smart Grid Innovation Center) #12;3 Smart Grid enables 21st Century Economy and Creates Need for SGRID3 Research &Technology (AERTC) Center is designed to nurture creation of new technologies for Smart Grid

Homes, Christopher C.

356

Smart Grid - Technologies for its realisation  

Microsoft Academic Search

There is a growing interest towards the development of the Smart Grid. Even though the Smart Grid offers many advantages for the connection of renewable energy sources while providing the efficient operation of the power grid, there are many gray areas which delay its realization. It is recognized that the early realization of the Smart Grid requires standards and regulations

Mahesh Sooriyabandara; Janake Ekanayake

2010-01-01

357

Adapting PKI for the smart grid  

Microsoft Academic Search

The Smart Grid is an update to the current power grid infrastructure, which is becoming outdated. Incorporating information systems into the traditional power grid allows the system to make smart decisions about the state of the power grid and dynamically alter the flow of electricity to meet changing needs and conditions. However, this new infrastructure presents cyber security risks that

Todd Baumeister

2011-01-01

358

GENIUS: a web portal for the grid  

NASA Astrophysics Data System (ADS)

The architecture and the current implementation of the grid portal GENIUS (Grid Enabled web environment for site Independent User job Submission), jointly developed by INFN and NICE within the context of the INFN Grid and DataGrid Project, is presented and discussed.

Andronico, A.; Barbera, R.; Falzone, A.; Lo Re, G.; Pulvirenti, A.; Rodolico, A.

2003-04-01

359

Towards Smart Grid Dynamic Ratings  

NASA Astrophysics Data System (ADS)

The energy distribution industry is giving greater attention to smart grid solutions as a means for increasing the capabilities, efficiency and reliability of the electrical power network. The smart grid makes use of intelligent monitoring and control devices throughout the distribution network to report on electrical properties such as voltage, current and power, as well as raising network alarms and events. A further aspect of the smart grid embodies the dynamic rating of electrical assets of the network. This fundamentally involves a rating of the load current capacity of electrical assets including feeders, transformers and switches. The mainstream approach to rate assets is to apply the vendor plate rating, which often under utilizes assets, or in some cases over utilizes when environmental conditions reduce the effective rated capacity, potentially reducing lifetime. Using active intelligence we have developed a rating system that rates assets in real time based upon several events. This allows for a far more efficient and reliable electrical grid that is able to extend further the life and reliability of the electrical network. In this paper we describe our architecture, the observations made during development and live deployment of the solution into operation. We also illustrate how this solution blends with the smart grid by proposing a dynamic rating system for the smart grid.

Cheema, Jamal; Clark, Adrian; Kilimnik, Justin; Pavlovski, Chris; Redman, David; Vu, Maria

2011-08-01

360

AstroGrid-D: Grid technology for astronomical science  

NASA Astrophysics Data System (ADS)

We present status and results of AstroGrid-D, a joint effort of astrophysicists and computer scientists to employ grid technology for scientific applications. AstroGrid-D provides access to a network of distributed machines with a set of commands as well as software interfaces. It allows simple use of computer and storage facilities and to schedule or monitor compute tasks and data management. It is based on the Globus Toolkit middleware (GT4). Chapter 1 describes the context which led to the demand for advanced software solutions in Astrophysics, and we state the goals of the project. We then present characteristic astrophysical applications that have been implemented on AstroGrid-D in chapter 2. We describe simulations of different complexity, compute-intensive calculations running on multiple sites (Section 2.1), and advanced applications for specific scientific purposes (Section 2.2), such as a connection to robotic telescopes (Section 2.2.3). We can show from these examples how grid execution improves e.g. the scientific workflow. Chapter 3 explains the software tools and services that we adapted or newly developed. Section 3.1 is focused on the administrative aspects of the infrastructure, to manage users and monitor activity. Section 3.2 characterises the central components of our architecture: The AstroGrid-D information service to collect and store metadata, a file management system, the data management system, and a job manager for automatic submission of compute tasks. We summarise the successfully established infrastructure in chapter 4, concluding with our future plans to establish AstroGrid-D as a platform of modern e-Astronomy.

Enke, Harry; Steinmetz, Matthias; Adorf, Hans-Martin; Beck-Ratzka, Alexander; Breitling, Frank; Brüsemeister, Thomas; Carlson, Arthur; Ensslin, Torsten; Högqvist, Mikael; Nickelt, Iliya; Radke, Thomas; Reinefeld, Alexander; Reiser, Angelika; Scholl, Tobias; Spurzem, Rainer; Steinacker, Jürgen; Voges, Wolfgang; Wambsganß, Joachim; White, Steve

2011-02-01

361

Smart Grid: Opportunities and Challenges Toward a Stronger and Smarter Grid  

E-print Network

Smart Grid: Opportunities and Challenges Toward a Stronger and Smarter Grid S. Massoud Amin, D electrical energy infrastructure ­ Transforming the Network into a Smart Grid ­ Developing an Expanded be reproduced in any form without prior authorization. Enabling a Stronger and Smarter Grid ·Smart Grid

Amin, S. Massoud

362

EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy  

E-print Network

EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy EconoGrid is a detailed simulation model, implemented in SLX1 , of a grid compute economy that implements selected of users. In a grid compute economy, computing resources are sold to users in a market where price

363

Pacific Northwest Smart GridPacific Northwest Smart Grid Demonstration ProjectDemonstration Project  

E-print Network

Pacific Northwest Smart GridPacific Northwest Smart Grid Demonstration ProjectDemonstration Project Northwest Power and Conservation Council Lee Hall, BPA Smart Grid Program Manager Tracy Yount, Battelle Electric Grid Research Manager April 14, 2010 PNWD-SA-8921 #12;Agenda · Smart Grid ­ What is it? · PNW

364

Grid-BGC: A Grid-Enabled Terrestrial Carbon Cycle Modeling System  

E-print Network

Grid-BGC: A Grid-Enabled Terrestrial Carbon Cycle Modeling System Jason Cope*, Craig Hartsough, Boulder National Center for Atmospheric Research matthew.woitaszek@colorado.edu Abstract. Grid-BGC implementation experiences with Grid technology on our systems. By design the Grid-BGC software framework

Tufo III, Henry M.

365

Method of making dished ion thruster grids  

NASA Technical Reports Server (NTRS)

A pair of flat grid blanks are clamped together at their edges with an impervious metal sheet on top. All of the blanks and sheets are dished simultaneously by forcing fluid to inflate an elastic sheet which contacts the bottom grid blank. A second impervious metal sheet is inserted between the two grid blanks if the grids have high percentage open areas. The dished grids are stress relieved simultaneously.

Banks, B. A. (inventor)

1975-01-01

366

Behind the scenes of a research and training collaboration: power, privilege, and the hidden transcript of race.  

PubMed

This paper examines a federally funded research and training collaboration between an Ivy League psychiatric research center and a historically Black university and medical center. This collaboration focuses on issues of psychiatric recovery and rehabilitation among African Americans. In addition, this multidisciplinary collaboration aims to build the research capacity at both institutions and to contribute to the tradition of research in culture and mental health within the medical social sciences and cultural psychiatry. This article provides a window into the complex, often messy, dynamics of a collaboration that cross cuts institutional, disciplinary, and demographic boundaries. Taking an auto-ethnographic approach, we intend to illustrate how collaborative relationships unfold and are constructed through ongoing reciprocal flows of knowledge and experience. Central to this aim is a consideration of how issues of power, privilege, and the hidden transcript of race shape the nature of our research and training efforts. PMID:23580139

Carpenter-Song, Elizabeth; Whitley, Rob

2013-06-01

367

The Privileging of Communitarian Ideas: Citation Practices and the Translation of Social Capital Into Public Health Research  

PubMed Central

The growing use of social science constructs in public health invites reflection on how public health researchers translate, that is, appropriate and reshape, constructs from the social sciences. To assess how 1 recently popular construct has been translated into public health research, we conducted a citation network and content analysis of public health articles on the topic of social capital. The analyses document empirically how public health researchers have privileged communitarian definitions of social capital and marginalized network definitions in their citation practices. Such practices limit the way public health researchers measure social capital’s effects on health. The application of social science constructs requires that public health scholars be sensitive to how their own citation habits shape research and knowledge. PMID:16006421

Moore, Spencer; Shiell, Alan; Hawe, Penelope; Haines, Valerie A.

2005-01-01

368

Current Biology 19, 18691874, November 17, 2009 2009 Elsevier Ltd All rights reserved DOI 10.1016/j.cub.2009.09.066 The Privileged Brain Representation  

E-print Network

by the strength of childhood olfactory memories. Indeed, in long-term memory, the first odor-to-object associ.1016/j.cub.2009.09.066 Report The Privileged Brain Representation of First Olfactory Associations Yaara impacts memory [8­10], we further asked whether the pleasantness of an odor would influence

Dudai, Yadin

369

Achievement of take-home dose privileges is associated with better-perceived sleep and with cognitive status among methadone maintenance treatment patients.  

PubMed

Abstract Objectives. Methadone maintenance treatment (MMT) patients may achieve up to a 2-week privilege of methadone take-home doses (THD), which is associated with considerable responsibility. MMT patients are characterized as having poor sleep quality and low cognitive states. We studied sleep indices and cognitive status with respect to THD privileges. Methods. A sample of 123 MMT patients stratified by THD groups was studied. Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and the cognitive Clock Drawing Test (CDT) were performed. Results. Thirty-one of 123 patients never had any THD and 92 did (25 had the maximum of 2 weeks). The never THD had history of longer duration of opiate usage and a shorter period in MMT. They had the highest rates of poor sleep (80.6%, PSQI > 5), daily sleepiness ("fall asleep while talking") (41.9%), and impaired cognitive status (58.1%, CDT < 3), while those who had 2-week privileges had the lowest (56, 8, and 28%, respectively). Logistic regression characterized THD patients as no-benzodiazepine and no-cocaine, short opiate usage duration, low ADHD scores, and no cognitive impairment (CDT = 3) and its interaction with treatment duration. Conclusion. Privileges that reflect patients' abstinence and rehabilitation were also expanded to be associated with better cognitive states. These finding confirm the THD dispensing performance. Including CDT as part of the decision for dispensing THD may be considered. PMID:24666249

Peles, Einat; Schreiber, Shaul; Domany, Yoav; Sason, Anat; Tene, Oren; Adelson, Miriam

2014-12-01

370

Dune: Safe User-level Access to Privileged CPU Features Adam Belay, Andrea Bittau, Ali Mashtizadeh, David Terei, David Mazi`eres, Christos Kozyrakis  

E-print Network

Dune: Safe User-level Access to Privileged CPU Features Adam Belay, Andrea Bittau, Ali Mashtizadeh, David Terei, David Mazi`eres, Christos Kozyrakis Stanford University Abstract Dune is a system, and tagged TLBs, while preserving the exist- ing OS interfaces for processes. Dune uses the virtualiza- tion

Kozyrakis, Christos

371

NOBEL PRIZE WINNER VISITS CAIRNS HIGH Cairns State High School physics students where privileged to have a distinguished guest speaker to the school, a Nobel  

E-print Network

NOBEL PRIZE WINNER VISITS CAIRNS HIGH Cairns State High School physics students where privileged rare that High School students are exposed to such high quality, leading edge scientists" said Robyn Cowie, Head of Science at Cairns State High School. "It not only gives students an insight into genuine

372

I Do Not Know What It Would Be Like to Be Poor: Learning about Privileged Korean 6th Graders' Understanding of Poverty  

ERIC Educational Resources Information Center

Freire (1970/ 2000) argued that both the oppressors and the oppressed should engage in a discussion of power struggles in order to become fully human. This study investigated how Freire's idea of becoming fully human was exercised in a critical literacy curriculum with a privileged group of students. As a teacher and researcher, I constructed an…

Huh, Seonmin

2010-01-01

373

A new look at immune privilege of the eye: dual role for the vision-related molecule, retinoic acid  

PubMed Central

The eye is an immunologically privileged and profoundly immunosuppressive environment. Early studies reported inhibition of T cell proliferation, IFN-? production and generation of T regulatory cells (Treg) by aqueous humor (AH), and identified TGF-? as a critical factor. However, T cell subsets including FoxP3+ Treg and Th17 were unknown at that time, as was the role of retinoic acid (RA) in Treg induction. Consequently, the effect of the ocular microenvironment on T cell lineage commitment and function, and the role of RA in this process, had not been explored. We now use gene manipulated mice and highly purified T cell populations to demonstrate that AH suppresses lineage commitment and acquisition of Th1 and Th17 effector function of naïve T cells, manifested as reduction of lineage-specific transcription factors and cytokines. Instead, AH promoted their massive conversion to FoxP3+ Treg that expressed CD25, GITR, CTLA-4 and CD103 and were functionally suppressive. TGF-? and RA were both needed and synergized for Treg conversion by AH, with TGF-? enhancing T cell expression of RAR?. Newly converted FoxP3+ Tregs were unstable, but were stabilized upon continued exposure to AH or by the DNA demethylating agent 5-AZA. In contrast, T cells already committed to effector function were resistant to the suppressive and Treg-inducing effects of AH. We conclude that RA in the eye plays a dual role: in vision and in immune privilege. Nevertheless, primed effector T cells are relatively insensitive to AH, helping to explain their ability to induce uveitis despite an inhibitory ocular microenvironment. PMID:21918194

Zhou, Ru; Horai, Reiko; Mattapallil, Mary J; Caspi, Rachel R

2011-01-01

374

75 FR 63462 - Smart Grid Interoperability Standards; Notice of Docket Designation for Smart Grid...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Commission [Docket No. RM11-2-000] Smart Grid Interoperability Standards; Notice of Docket Designation for Smart Grid Interoperability Standards October...framework to achieve interoperability of smart grid devices and systems, including...

2010-10-15

375

DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity  

E-print Network

DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity: Vol. 2, Privacy and the Smart Grid The Smart Grid Interoperability Panel ­ Smart Grid Cybersecurity Committee #12;DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity: Vol. 2, Privacy and the Smart Grid The Smart Grid

376

Interactive solution-adaptive grid generation  

NASA Technical Reports Server (NTRS)

TURBO-AD is an interactive solution-adaptive grid generation program under development. The program combines an interactive algebraic grid generation technique and a solution-adaptive grid generation technique into a single interactive solution-adaptive grid generation package. The control point form uses a sparse collection of control points to algebraically generate a field grid. This technique provides local grid control capability and is well suited to interactive work due to its speed and efficiency. A mapping from the physical domain to a parametric domain was used to improve difficulties that had been encountered near outwardly concave boundaries in the control point technique. Therefore, all grid modifications are performed on a unit square in the parametric domain, and the new adapted grid in the parametric domain is then mapped back to the physical domain. The grid adaptation is achieved by first adapting the control points to a numerical solution in the parametric domain using control sources obtained from flow properties. Then a new modified grid is generated from the adapted control net. This solution-adaptive grid generation process is efficient because the number of control points is much less than the number of grid points and the generation of a new grid from the adapted control net is an efficient algebraic process. TURBO-AD provides the user with both local and global grid controls.

Choo, Yung K.; Henderson, Todd L.

1992-01-01

377

caGrid 1.0: a Grid enterprise architecture for cancer research.  

PubMed

caGrid is the core Grid architecture of the NCI-sponsored cancer Biomedical Informatics Grid (caBIG) program. The current release, caGrid version 1.0, is developed as the production Grid software infrastructure of caBIG. Based on feedback from adopters of the previous version (caGrid 0.5), it has been significantly enhanced with new features and improvements to existing components. This paper presents an overview of caGrid 1.0, its main components, and enhancements over caGrid 0.5. PMID:18693901

Oster, Scott; Langella, Stephen; Hastings, Shannon; Ervin, David; Madduri, Ravi; Kurc, Tahsin; Siebenlist, Frank; Covitz, Peter; Shanbhag, Krishnakant; Foster, Ian; Saltz, Joel

2007-01-01

378

Wavelet-Based Grid Generation  

NASA Technical Reports Server (NTRS)

Wavelets can provide a basis set in which the basis functions are constructed by dilating and translating a fixed function known as the mother wavelet. The mother wavelet can be seen as a high pass filter in the frequency domain. The process of dilating and expanding this high-pass filter can be seen as altering the frequency range that is 'passed' or detected. The process of translation moves this high-pass filter throughout the domain, thereby providing a mechanism to detect the frequencies or scales of information at every location. This is exactly the type of information that is needed for effective grid generation. This paper provides motivation to use wavelets for grid generation in addition to providing the final product: source code for wavelet-based grid generation.

Jameson, Leland

1996-01-01

379

TBGG- INTERACTIVE ALGEBRAIC GRID GENERATION  

NASA Technical Reports Server (NTRS)

TBGG, Two-Boundary Grid Generation, applies an interactive algebraic grid generation technique in two dimensions. The program incorporates mathematical equations that relate the computational domain to the physical domain. TBGG has application to a variety of problems using finite difference techniques, such as computational fluid dynamics. Examples include the creation of a C-type grid about an airfoil and a nozzle configuration in which no left or right boundaries are specified. The underlying two-boundary technique of grid generation is based on Hermite cubic interpolation between two fixed, nonintersecting boundaries. The boundaries are defined by two ordered sets of points, referred to as the top and bottom. Left and right side boundaries may also be specified, and call upon linear blending functions to conform interior interpolation to the side boundaries. Spacing between physical grid coordinates is determined as a function of boundary data and uniformly spaced computational coordinates. Control functions relating computational coordinates to parametric intermediate variables that affect the distance between grid points are embedded in the interpolation formulas. A versatile control function technique with smooth cubic spline functions is also presented. The TBGG program is written in FORTRAN 77. It works best in an interactive graphics environment where computational displays and user responses are quickly exchanged. The program has been implemented on a CDC Cyber 170 series computer using NOS 2.4 operating system, with a central memory requirement of 151,700 (octal) 60 bit words. TBGG requires a Tektronix 4015 terminal and the DI-3000 Graphics Library of Precision Visuals, Inc. TBGG was developed in 1986.

Smith, R. E.

1994-01-01

380

Tuned grid generation with ICEM CFD  

NASA Technical Reports Server (NTRS)

ICEM CFD is a CAD based grid generation package that supports multiblock structured, unstructured tetrahedral and unstructured hexahedral grids. Major development efforts have been spent to extend ICEM CFD's multiblock structured and hexahedral unstructured grid generation capabilities. The modules added are: a parametric grid generation module and a semi-automatic hexahedral grid generation module. A fully automatic version of the hexahedral grid generation module for around a set of predefined objects in rectilinear enclosures has been developed. These modules will be presented and the procedures used will be described, and examples will be discussed.

Wulf, Armin; Akdag, Vedat

1995-01-01

381

Convectively cooled electrical grid structure  

DOEpatents

Undesirable distortions of electrical grid conductors (12) from thermal cycling are minimized and related problems such as unwanted thermionic emission and structural failure from overheating are avoided by providing for a flow of fluid coolant within each conductor (12). The conductors (12) are secured at each end to separate flexible support elements (16) which accommodate to individual longitudinal expansion and contraction of each conductor (12) while resisting lateral displacements, the coolant flow preferably being directed into and out of each conductor through passages (48) in the flexible support elements (16). The grid (11) may have a modular or divided construction which facilitates manufacture and repairs.

Paterson, James A. (Oakland, CA); Koehler, Gary W. (Oakland, CA)

1982-01-01

382

Scientific Computing on the Grid  

SciTech Connect

Computer simulations are becoming increasingly important as the only means for studying and interpreting the complex processes of nature. Yet the scope and accuracy of these simulations are severely limited by available computational power, even using today's most powerful supercomputers. As we endeavor to simulate the true complexity of nature, we will require much larger scale calculations than are possible at present. Such dynamic and large scale applications will require computational grids and grids require development of new latency tolerant algorithms, and sophisticated code frameworks like Cactus to carry out more complex and high fidelity simulations with a massive degree of parallelism.

Allen, Gabrielle; Seidel, Edward; Shalf, John

2001-12-12

383

GENI: Grid Hardware and Software  

SciTech Connect

GENI Project: The 15 projects in ARPA-E’s GENI program, short for “Green Electricity Network Integration,” aim to modernize the way electricity is transmitted in the U.S. through advances in hardware and software for the electric grid. These advances will improve the efficiency and reliability of electricity transmission, increase the amount of renewable energy the grid can utilize, and provide energy suppliers and consumers with greater control over their power flows in order to better manage peak power demand and cost.

None

2012-01-09

384

Grid for Earth Science Applications  

NASA Astrophysics Data System (ADS)

The civil society at large has addressed to the Earth Science community many strong requirements related in particular to natural and industrial risks, climate changes, new energies. The main critical point is that on one hand the civil society and all public ask for certainties i.e. precise values with small error range as it concerns prediction at short, medium and long term in all domains; on the other hand Science can mainly answer only in terms of probability of occurrence. To improve the answer or/and decrease the uncertainties, (1) new observational networks have been deployed in order to have a better geographical coverage and more accurate measurements have been carried out in key locations and aboard satellites. Following the OECD recommendations on the openness of research and public sector data, more and more data are available for Academic organisation and SMEs; (2) New algorithms and methodologies have been developed to face the huge data processing and assimilation into simulations using new technologies and compute resources. Finally, our total knowledge about the complex Earth system is contained in models and measurements, how we put them together has to be managed cleverly. The technical challenge is to put together databases and computing resources to answer the ES challenges. However all the applications are very intensive computing. Different compute solutions are available and depend on the characteristics of the applications. One of them is Grid especially efficient for independent or embarrassingly parallel jobs related to statistical and parametric studies. Numerous applications in atmospheric chemistry, meteorology, seismology, hydrology, pollution, climate and biodiversity have been deployed successfully on Grid. In order to fulfill requirements of risk management, several prototype applications have been deployed using OGC (Open geospatial Consortium) components with Grid middleware. The Grid has permitted via a huge number of runs to decrease uncertainties by increasing the probability of occurrence and to create large database devoted for future satellite instrument. Some limitations are related to the combination of databases-outside the grid infrastructure like ESGF (Earth System Grid Federation) and grid compute resources; and to real-time applications that need resource reservation in order to insure results at given time. However some solutions have been developed. The major lesson we learnt with Grid is the impact of e-collaboration among various scientific technical domains on the development of ES research in Europe.

Petitdidier, Monique; Schwichtenberg, Horst

2013-04-01

385

Grid Collector: Facilitating Efficient Selective Access from DataGrids  

SciTech Connect

The Grid Collector is a system that facilitates the effective analysis and spontaneous exploration of scientific data. It combines an efficient indexing technology with a Grid file management technology to speed up common analysis jobs on high-energy physics data and to enable some previously impractical analysis jobs. To analyze a set of high-energy collision events, one typically specifies the files containing the events of interest, reads all the events in the files, and filters out unwanted ones. Since most analysis jobs filter out significant number of events, a considerable amount of time is wasted by reading the unwanted events. The Grid Collector removes this inefficiency by allowing users to specify more precisely what events are of interest and to read only the selected events. This speeds up most analysis jobs. In existing analysis frameworks, the responsibility of bringing files from tertiary storages or remote sites to local disks falls on the users. This forces most of analysis jobs to be performed at centralized computer facilities where commonly used files are kept on large shared file systems. The Grid Collector automates file management tasks and eliminates the labor-intensive manual file transfers. This makes it much easier to perform analyses that require data files on tertiary storages and remote sites. It also makes more computer resources available for analysis jobs since they are no longer bound to the centralized facilities.

Wu, Kesheng; Gu, Junmin; Lauret, Jerome; Poskanzer, Arthur M.; Shoshani, Arie; Sim, Alexander; Zhang, Wei-Ming

2005-05-17

386

Grid2003 and Open Science Grid Ruth Pordes  

E-print Network

for CDF, D0, SDSS, U.S CMS, BTeV..) U.S. CMS Trillium: PPDG Coordinator, iVDGL Management, April 16th 2004&C U.S. ATLAS Computing SDSS Trillium LIGO* ** * * Grid TelemetryUofBuffalo * BTeV Virtual Data Toolkit Anzar Afaq, Eileen Berman, James Annis, Lothar Bauerdick, Michael Ernst, Ian Fisk, Lisa Giacchetti, Greg

Wisconsin at Madison, University of

387

Grid Computing Portlets Development Assignment  

NSDL National Science Digital Library

Grid Computing Portlets Development Assignment - The purpose of this assignment is to show how to create and test a portlet using the Gridsphere Portal. In the process of doing that, the student will also learn how to install Gridsphere and other required packages.

Ferner, Clayton; Wilkinson, Barry

2011-06-30

388

Biometric authentication in Smart Grid  

Microsoft Academic Search

The Smart Grid being developed nationwide aims at bringing modern IT network into the industrial control system (ICS) network to more effectively generate, transmission, and distribute electricity. These networks have their unique vulnerabilities and face all types of threats. Interconnecting them will undoubtedly increase complexity, introduce new vulnerabilities and the combined network will become more attractive to hackers. How successful

Qinghai Gao

2012-01-01

389

Smart grid cyber security requirements  

Microsoft Academic Search

The transformation of the traditional power grid into a network of intelligent energy distribution able to meet the growing needs of efficiency and environmental impact involves, not only a historical and technical development, but also a profound transformation of the entire existing infrastructure. Given the undeniable benefits introduced, the new smart energy network vulnerabilities are found both in the communication

Emiliano Pallotti; Federica Mangiatordi

2011-01-01

390

Grid-coordinate generation program  

USGS Publications Warehouse

This program description of the grid-coordinate generation program is written for computer users who are familiar with digital aquifer models. The program computes the coordinates for a variable grid -used in the 'Pinder Model' (a finite-difference aquifer simulator), for input to the CalComp GPCP (general purpose contouring program). The program adjusts the y-value by a user-supplied constant in order to transpose the origin of the model grid from the upper left-hand corner to the lower left-hand corner of the grid. The user has the options of, (1.) choosing the boundaries of the plot; (2.) adjusting the z-values (altitudes) by a constant; (3.) deleting superfluous z-values and (4.) subtracting the simulated surfaces from each other to obtain the decline. Output of this program includes the fixed format CNTL data cards and the other data cards required for input to GPCP. The output from GPCP then is used to produce a potentiometric map or a decline map by means of the CalComp plotter.

Cosner, Oliver J.; Horwich, Esther

1974-01-01

391

ELECTRIC GRID PROTECTION THE INTERNATIONAL  

E-print Network

interference, Electromagnetic Pulse (EMP), or Intentional Electromagnetic Interference (IEMI). See below the status of national electric grid evaluation and protection against electromagnetic threats in 11 counties sensitivity to the full range of electromagnetic threats1 . This historic and ongoing situation has resulted

Schrijver, Karel

392

Smart Grid Communications System Blueprint  

NASA Astrophysics Data System (ADS)

Telecommunications operators are well versed in deploying 2G and 3G wireless networks. These networks presently support the mobile business user and/or retail consumer wishing to place conventional voice calls and data connections. The electrical power industry has recently commenced transformation of its distribution networks by deploying smart monitoring and control devices throughout their networks. This evolution of the network into a `smart grid' has also motivated the need to deploy wireless technologies that bridge the communication gap between the smart devices and information technology systems. The requirements of these networks differ from traditional wireless networks that communications operators have deployed, which have thus far forced energy companies to consider deploying their own wireless networks. We present our experience in deploying wireless networks to support the smart grid and highlight the key properties of these networks. These characteristics include application awareness, support for large numbers of simultaneous cell connections, high service coverage and prioritized routing of data. We also outline our target blueprint architecture that may be useful to the industry in building wireless and fixed networks to support the smart grid. By observing our experiences, telecommunications operators and equipment manufacturers will be able to augment their current networks and products in a way that accommodates the needs of the emerging industry of smart grids and intelligent electrical networks.

Clark, Adrian; Pavlovski, Chris

2010-10-01

393

Grid Logging: Best Practices Guide  

SciTech Connect

The purpose of this document is to help developers of Grid middleware and application software generate log files that will be useful to Grid administrators, users, developers and Grid middleware itself. Currently, most of the currently generated log files are only useful to the author of the program. Good logging practices are instrumental to performance analysis, problem diagnosis, and security auditing tasks such as incident tracing and damage assessment. This document does not discuss the issue of a logging API. It is assumed that a standard log API such as syslog (C), log4j (Java), or logger (Python) is being used. Other custom logging API or even printf could be used. The key point is that the logs must contain the required information in the required format. At a high level of abstraction, the best practices for Grid logging are: (1) Consistently structured, typed, log events; (2) A standard high-resolution timestamp; (3) Use of logging levels and categories to separate logs by detail and purpose; (4) Consistent use of global and local identifiers; and (5) Use of some regular, newline-delimited ASCII text format. The rest of this document describes each of these recommendations in detail.

Tierney, Brian L; Tierney, Brian L; Gunter, Dan

2008-04-01

394

Grid Architecture William E. Johnston  

E-print Network

and Events security services transport services OperationalSupport Portals Resource Brokering Fault Grid Common Services: Uniform Access, Security, and Management of Compute, Data, and Instrument Resources MER/CIP STS/SLI Mission Analysis ES Modeling ISS Training Aviation Capacity User Environment

395

Overlapping grids for flow field calculations  

NASA Technical Reports Server (NTRS)

Many problems in computational fluid dynamics (CFD) involve the calculation of flow fields within or around complex geometric configurations. The flow solution is computed on a computational grid. The construction of the grid is one of the major difficulties in the application of CFD to the analysis of flow about actual aircraft configurations. Due to geometric complexity, the grid has to be constructed in simple subregions and then all of these subgrids have to be pieced together to form a complete grid for the entire flow field. The entire grid, which is called a composite grid because it is formed from many parts, may have common regions. In either case, the computation of the flow field, using any numerical algorithm, will require the transfer of information between individual subgrids. The transfer of information is more difficult with overlapping grids. Algorithms have been developed and tested for automating the transfer of information between two overlapping grids.

Mastin, Charles Wayne

1988-01-01

396

Structural Vulnerability Assessment of Electric Power Grids  

E-print Network

Cascading failures are the typical reasons of black- outs in power grids. The grid topology plays an important role in determining the dynamics of cascading failures in power grids. Measures for vulnerability analysis are crucial to assure a higher level of robustness of power grids. Metrics from Complex Networks are widely used to investigate the grid vulnerability. Yet, these purely topological metrics fail to capture the real behaviour of power grids. This paper proposes a metric, the effective graph resistance, as a vulnerability measure to de- termine the critical components in a power grid. Differently than the existing purely topological measures, the effective graph resistance accounts for the electrical properties of power grids such as power flow allocation according to Kirchoff laws. To demonstrate the applicability of the effective graph resistance, a quantitative vulnerability assessment of the IEEE 118 buses power system is performed. The simulation results verify the effectiveness of the effect...

Koç, Yakup; Kooij, Robert E; Brazier, Frances M T

2013-01-01

397

Additional Security Considerations for Grid Management  

NASA Technical Reports Server (NTRS)

The use of Grid computing environments is growing in popularity. A Grid computing environment is primarily a wide area network that encompasses multiple local area networks, where some of the local area networks are managed by different organizations. A Grid computing environment also includes common interfaces for distributed computing software so that the heterogeneous set of machines that make up the Grid can be used more easily. The other key feature of a Grid is that the distributed computing software includes appropriate security technology. The focus of most Grid software is on the security involved with application execution, file transfers, and other remote computing procedures. However, there are other important security issues related to the management of a Grid and the users who use that Grid. This note discusses these additional security issues and makes several suggestions as how they can be managed.

Eidson, Thomas M.

2003-01-01

398

21 CFR 892.1910 - Radiographic grid.  

Code of Federal Regulations, 2013 CFR

... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1910 Radiographic grid. (a) Identification. A radiographic grid...

2013-04-01

399

21 CFR 892.1910 - Radiographic grid.  

Code of Federal Regulations, 2011 CFR

... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1910 Radiographic grid. (a) Identification. A radiographic grid...

2011-04-01

400

21 CFR 892.1910 - Radiographic grid.  

Code of Federal Regulations, 2014 CFR

... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1910 Radiographic grid. (a) Identification. A radiographic grid...

2014-04-01

401

21 CFR 892.1910 - Radiographic grid.  

Code of Federal Regulations, 2012 CFR

... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1910 Radiographic grid. (a) Identification. A radiographic grid...

2012-04-01

402

21 CFR 892.1910 - Radiographic grid.  

Code of Federal Regulations, 2010 CFR

... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1910 Radiographic grid. (a) Identification. A radiographic grid...

2010-04-01

403

Grid computing in image analysis  

PubMed Central

Diagnostic surgical pathology or tissue–based diagnosis still remains the most reliable and specific diagnostic medical procedure. The development of whole slide scanners permits the creation of virtual slides and to work on so-called virtual microscopes. In addition to interactive work on virtual slides approaches have been reported that introduce automated virtual microscopy, which is composed of several tools focusing on quite different tasks. These include evaluation of image quality and image standardization, analysis of potential useful thresholds for object detection and identification (segmentation), dynamic segmentation procedures, adjustable magnification to optimize feature extraction, and texture analysis including image transformation and evaluation of elementary primitives. Grid technology seems to possess all features to efficiently target and control the specific tasks of image information and detection in order to obtain a detailed and accurate diagnosis. Grid technology is based upon so-called nodes that are linked together and share certain communication rules in using open standards. Their number and functionality can vary according to the needs of a specific user at a given point in time. When implementing automated virtual microscopy with Grid technology, all of the five different Grid functions have to be taken into account, namely 1) computation services, 2) data services, 3) application services, 4) information services, and 5) knowledge services. Although all mandatory tools of automated virtual microscopy can be implemented in a closed or standardized open system, Grid technology offers a new dimension to acquire, detect, classify, and distribute medical image information, and to assure quality in tissue–based diagnosis. PMID:21516880

2011-01-01

404

Flood Forecasting in a Grid Computing Environment  

Microsoft Academic Search

\\u000a This paper presents a prototype of a flood forecasting system based on Grid computing. Flood forecasting is a complex problem\\u000a that requires cooperation and coupling of many simulation models. To enable this coupling in an effective way, a part of the\\u000a CrossGrid project is aimed towards developing a Grid Computing Environment (GCE) for flood forecasting, as described here.\\u000a The Grid

Ladislav Hluchý; Ján Astalos; Miroslav Dobrucký; Ondrej Habala; Branislav Simo; Viet D. Tran

2003-01-01

405

Grid Computing in New York State, USA  

Microsoft Academic Search

We have designed and deployed the New York State Grid (NYS Grid), which consists of an integrated computational and data grid.\\u000a NYS Grid is used in a ubiquitous fashion, where the users have virtual access to their data sets and applications, allowing\\u000a the user to perform tasks without knowledge of the physical hosts for data storage or compute systems. A

Jonathan J. Bednasz; Steven M. Gallo; Russ Miller; Catherine L. Ruby

2007-01-01

406

The National Grid Project: A system overview  

NASA Technical Reports Server (NTRS)

The National Grid Project (NGP) is a comprehensive numerical grid generation software system that is being developed at the National Science Foundation (NSF) Engineering Research Center (ERC) for Computational Field Simulation (CFS) at Mississippi State University (MSU). NGP is supported by a coalition of U.S. industries and federal laboratories. The objective of the NGP is to significantly decrease the amount of time it takes to generate a numerical grid for complex geometries and to increase the quality of these grids to enable computational field simulations for applications in industry. A geometric configuration can be discretized into grids (or meshes) that have two fundamental forms: structured and unstructured. Structured grids are formed by intersecting curvilinear coordinate lines and are composed of quadrilateral (2D) and hexahedral (3D) logically rectangular cells. The connectivity of a structured grid provides for trivial identification of neighboring points by incrementing coordinate indices. Unstructured grids are composed of cells of any shape (commonly triangles, quadrilaterals, tetrahedra and hexahedra), but do not have trivial identification of neighbors by incrementing an index. For unstructured grids, a set of points and an associated connectivity table is generated to define unstructured cell shapes and neighboring points. Hybrid grids are a combination of structured grids and unstructured grids. Chimera (overset) grids are intersecting or overlapping structured grids. The NGP system currently provides a user interface that integrates both 2D and 3D structured and unstructured grid generation, a solid modeling topology data management system, an internal Computer Aided Design (CAD) system based on Non-Uniform Rational B-Splines (NURBS), a journaling language, and a grid/solution visualization system.

Gaither, Adam; Gaither, Kelly; Jean, Brian; Remotigue, Michael; Whitmire, John; Soni, Bharat; Thompson, Joe; Dannenhoffer,, John; Weatherill, Nigel

1995-01-01

407

Grid resource management based on economic mechanisms  

Microsoft Academic Search

Resources in the grid context belong to different control organizations with different interest, therefore the economic interest\\u000a of each grid participant should be considered. The economic mechanism can guarantee the interest of participants in the grid\\u000a with fairness and efficiency. In this paper, an economic-based resource management framework is put forward for grid computing,\\u000a and then how to determine the

Chuliang Weng; Minglu Li; Xinda Lu

2007-01-01

408

Best Practices In Overset Grid Generation  

NASA Technical Reports Server (NTRS)

Grid generation for overset grids on complex geometry can be divided into four main steps: geometry processing, surface grid generation, volume grid generation and domain connectivity. For each of these steps, the procedures currently practiced by experienced users are described. Typical problems encountered are also highlighted and discussed. Most of the guidelines are derived from experience on a variety of problems including space launch and return vehicles, subsonic transports with propulsion and high lift devices, supersonic vehicles, rotorcraft vehicles, and turbomachinery.

Chan, William M.; Gomez, Reynaldo J., III; Rogers, Stuart E.; Buning, Pieter G.; Kwak, Dochan (Technical Monitor)

2002-01-01

409

AMSR-E Swath to Grid Toolkit  

Microsoft Academic Search

The AMSR-E Swath to Grid Toolkit (AS2GT) is a suite of software tools to subset and grid Levels 1b and 2a AMSR-E swath data. Gridding options include control over the map projection, resolution, and dimensions of the output grid, selection of resampling method, choice of how to handle overlapping swaths, and subsetting by time or region. These tools make it

K. Knowles; M. J. Brodzik; M. H. Savoie

2003-01-01

410

The fundamentals of adaptive grid movement  

NASA Technical Reports Server (NTRS)

Basic grid point movement schemes are studied. The schemes are referred to as adaptive grids. Weight functions and equidistribution in one dimension are treated. The specification of coefficients in the linear weight, attraction to a given grid or a curve, and evolutionary forces are considered. Curve by curve and finite volume methods are described. The temporal coupling of partial differential equations solvers and grid generators was discussed.

Eiseman, Peter R.

1990-01-01

411

The State of NASA's Information Power Grid  

NASA Technical Reports Server (NTRS)

This viewgraph presentation transfers the concept of the power grid to information sharing in the NASA community. An information grid of this sort would be characterized as comprising tools, middleware, and services for the facilitation of interoperability, distribution of new technologies, human collaboration, and data management. While a grid would increase the ability of information sharing, it would not necessitate it. The onus of utilizing the grid would rest with the users.

Johnston, William E.; Vaziri, Arsi; Tanner, Leigh Ann; Feiereisen, William J.; Thigpen, William; Biegel, Bryan (Technical Monitor)

2001-01-01

412

Spaceflight Operations Services Grid (SOSG)  

NASA Technical Reports Server (NTRS)

In an effort to adapt existing space flight operations services to new emerging Grid technologies we are developing a Grid-based prototype space flight operations Grid. This prototype is based on the operational services being provided to the International Space Station's Payload operations located at the Marshall Space Flight Center, Alabama. The prototype services will be Grid or Web enabled and provided to four user communities through portal technology. Users will have the opportunity to assess the value and feasibility of Grid technologies to their specific areas or disciplines. In this presentation descriptions of the prototype development, User-based services, Grid-based services and status of the project will be presented. Expected benefits, findings and observations (if any) to date will also be discussed. The focus of the presentation will be on the project in general, status to date and future plans. The End-use services to be included in the prototype are voice, video, telemetry, commanding, collaboration tools and visualization among others. Security is addressed throughout the project and is being designed into the Grid technologies and standards development. The project is divided into three phases. Phase One establishes the baseline User-based services required for space flight operations listed above. Phase Two involves applying Gridlweb technologies to the User-based services and development of portals for access by users. Phase Three will allow NASA and end users to evaluate the services and determine the future of the technology as applied to space flight operational services. Although, Phase One, which includes the development of the quasi-operational User-based services of the prototype, development will be completed by March 2004, the application of Grid technologies to these services will have just begun. We will provide status of the Grid technologies to the individual User-based services. This effort will result in an extensible environment that incorporates existing and new spaceflight services into a standards-based framework providing current and future NASA programs with cost savings and new and evolvable methods to conduct science. This project will demonstrate how the use of new programming paradigms such as web and grid services can provide three significant benefits to the cost-effective delivery of spaceflight services. They will enable applications to operate more efficiently by being able to utilize pooled resources. They will also permit the reuse of common services to rapidly construct new and more powerful applications. Finally they will permit easy and secure access to services via a combination of grid and portal technology by a distributed user community consisting of NASA operations centers, scientists, the educational community and even the general population as outreach. The approach will be to deploy existing mission support applications such as the Telescience Resource Kit (TReK) and new applications under development, such as the Grid Video Distribution System (GViDS), together with existing grid applications and services such as high-performance computing and visualization services provided by NASA s Information Power Grid (IPG) in the MSFC s Payload Operations Integration Center (POIC) HOSC Annex. Once the initial applications have been moved to the grid, a process will begin to apply the new programming paradigms to integrate them where possible. For example, with GViDS, instead of viewing the Distribution service as an application that must run on a single node, the new approach is to build it such that it can be dispatched across a pool of resources in response to dynamic loads. To make this a reality, reusable services will be critical, such as a brokering service to locate appropriate resource within the pool. This brokering service can then be used by other applications such as the TReK. To expand further, if the GViDS application is constructed using a services-based mel, then other applications such as the Video Auditorium can then use GViDS as a service to easil

Bradford, Robert N.; Thigpen, William W.

2004-01-01

413

Home visits to improve breast health knowledge and screening practices in a less privileged area in Jordan  

PubMed Central

Background Breast cancer is the most common cancer afflicting women in Jordan. This study aimed to assess the effects of an educational intervention through home visits, including offering free mammography screening vouchers, on changing women’s breast health knowledge and screening practices for early detection of breast cancer in a less privileged area in Jordan. Methods Two thousand four hundred breast health awareness home visits were conducted and 2363 women aged 20-79 years (median: 41) answered a pre-test interview-administrated questionnaire to assess their breast health knowledge and practices at the baseline. After a home-based educational session, 625 women aged 40 years or older were referred to free mammography screening. Five hundred and ninety six homes were revisited six months later and out of these 593 women participated in a post-test. The women’s retained breast health knowledge, the changes in their reported breast health practices and their usage of the free mammography voucher, were assessed. Results The mean knowledge score increased significantly (p?privileged area in Jordan. PMID:24885063

2014-01-01

414

Grid Power Quality Improvements Using Grid-Coupled Hybrid Electric Vehicles PEMD 2006  

Microsoft Academic Search

The paper examines the interaction between grid-coupled full hybrid electric vehicles (HEV) and the grid. The interaction allows the hybrid vehicle to travel a significant part of the time in all-electric mode. On the other hand, the grid coupling allows the grid to use the hybrid car as a controllable load and energy storage facility, enabling a higher penetration of

S. De Breucker; J. Driesen; R. Belmans

415

Summary of Smart Grid Technology and Research on Smart Grid Security Mechanism  

Microsoft Academic Search

Smart Grid is the inevitable result of the world's economic and technological development, this paper describes the basic ideas of smart grid and highlights the key technological issues for smart grid construction that shall be addressed on basis of these basic ideas. Finally, attention has also be paid to further research on smart grid security mechanism by virtue of the

Minghan Zou; Yun Miao

2011-01-01

416

Presentation Title: Grid ACIS: Expanding the Applied Climate Information System to gridded data sets  

E-print Network

-users and decision makers are asking for this type of information derived from a variety of gridded climate data sets-wide project to develop ACIS products and associated web service calls to a suite of gridded data setsPresentation Title: Grid ACIS: Expanding the Applied Climate Information System to gridded data

Miami, University of

417

GridRPC: A Remote Procedure Call API for Grid Computing  

Microsoft Academic Search

This paper discusses preliminary work on standardizing and implementing a remote procedure call (RPC) mechanism for grid computing. The GridRPC API is designed to address one of the factors that has hindered widespread acceptance of grid computing -- the lack of a standardized, portable, and simple programming interface. In this paper, we examine two concrete implementations of the GridRPC API

K. Seymour; Knoxville J. Dongarra; Knoxville C. Lee; H. Casanova

2002-01-01

418

Programming the Grid: Distributed Software Components, P2P and Grid Web Services for Scientific Applications  

Microsoft Academic Search

Computational Grids (Grid, Grid1) have become an important asset in large-scale scientific and engineering research. By providing a set of services that allow a widely distributed collection of resources to be tied together into a relatively seamless computing framework, teams of researchers can collaborate to solve problems that they could not have attempted before. Unfortunately the task of building Grid

Dennis Gannon; Randall Bramley; Geoffrey Fox; Shava Smallen; Al Rossi; Rachana Ananthakrishnan; Felipe Bertrand; Kenneth Chiu; Matt Farrellee; Madhusudhan Govindaraju; Sriram Krishnan; Lavanya Ramakrishnan; Yogesh Simmhan; Aleksander Slominski; Yu Ma; Caroline Olariu; Nicolas Rey-cenvaz

2002-01-01

419

Scoping security issues for interactive grids  

Microsoft Academic Search

Grid computing allows flexible resource sharing among geographically distributed computing resources in multiple administrative domains. Virtualization of resources allows jobs to be run on remote resources participating in a grid. While this computing paradigm has been used primarily for batch jobs, we study interactive grid applications rich in graphics and multimedia such as scientific visualization and digital content creation. A

Jeffrey Dwoskin; Sujoy Basu; Vanish Talwar; Raj Kumar; Fred Kitson; Ruby Lee

2003-01-01

420

Enhancing Grid Security with Trust Management  

Microsoft Academic Search

Recently, trust has been recognized as an important factor for grid computing security. We develop a trust management architecture for trust enhanced grid security incorporating a novel trust model which is capable of capturing various types of trust relationships that exist in a grid system and providing mechanisms for trust evaluation, recommendations and update for trust decisions. The outcomes of

Ching Lin; Vijay Varadharajan; Yan Wang; Vineet Pruthi

2004-01-01

421

Protecting Smart Grid Automation Systems Against Cyberattacks  

Microsoft Academic Search

The smart grid moves new power grid automation systems from being proprietary and closed to the current state of information technology (IT) which is highly interconnected and open. But open and interconnected automation platforms bring about major security challenges. The power grid automation network has inherent security risks due to the fact that the systems and applications for the power

Dong Wei; Yan Lu; Mohsen Jafari; Paul M. Skare; Kenneth Rohde

2011-01-01

422

A Unified management system for Smart Grid  

Microsoft Academic Search

Smart Grid is seeing one of the largest implementation of Communication infrastructure in the power utilities. The basic component that makes the Smart Grid work is this underlying robust information & communication technologies (ICT), which enables shared understanding between each of the complex systems in the grid. Traditionally utilities have implemented operations technology (OT) independently of information technology (IT). However

Nampuraja Enose

2011-01-01

423

Multigate Communication Network for Smart Grid  

Microsoft Academic Search

It is envisioned that one of the most important issues in smart grid will be to design a network architecture that is capable of providing secure and reliable two-way com- munication from meters to other Smart Grid domains. While networking technologies and systems have been greatly en- hanced, in wireless communication environments the smart grid faces new challenges in terms

Hamid Gharavi; Bin Hu

2011-01-01

424

Smart Grid Information Security (IS) Functional Requirement  

Microsoft Academic Search

It is important to implement safe smart grid environment to enhance people's lives and livelihoods. This paper provides information on smart grid IS functional requirement by illustrating some discussion points to the sixteen identified requirements. This paper introduces the smart grid potential hazards that can be referred as a triggering factor to improve the system and security of the entire

Amy Poh; Ai Ling; Mukaidono Masao

2011-01-01

425

Toward secure targeted broadcast in smart grid  

Microsoft Academic Search

Significant research efforts have recently been directed toward materializing smart grid for the purpose of transforming the aging power grid into an efficient and intelligent electric power distribution system. Conceptually, smart grid can be regarded as a fusion of different advanced technologies (i.e., electrical power engineering meets sensing, control, digital communication, and network information technologies). However, when these advanced technologies

Nei Kato; Rongxing Lu; Xuemin Shen; Yousuke Nozaki

2012-01-01

426

Multiprocessor computer overset grid method and apparatus  

DOEpatents

A multiprocessor computer overset grid method and apparatus comprises associating points in each overset grid with processors and using mapped interpolation transformations to communicate intermediate values between processors assigned base and target points of the interpolation transformations. The method allows a multiprocessor computer to operate with effective load balance on overset grid applications.

Barnette, Daniel W. (Veguita, NM); Ober, Curtis C. (Los Lunas, NM)

2003-01-01

427

21 CFR 886.1330 - Amsler grid.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false Amsler grid. 886.1330 Section 886.1330 Food and... Diagnostic Devices § 886.1330 Amsler grid. (a) Identification. An Amsler grid is a device that is a series of charts...

2010-04-01

428

Grid Resource Negotiation: Survey and New Directions  

Microsoft Academic Search

Since Grid computing systems involve large-scale resource sharing, resource management is central to their operations. Whereas there are more Grid resource management systems adopting auction, commodity market, and contract-net (tendering) models, this survey supplements and complements existing surveys by reviewing, comparing, and highlighting existing research initiatives on applying bargaining (negotiation) as a mechanism to Grid resource management. The contributions of

Kwang Mong Sim

2010-01-01

429

FUTURE POWER GRID INITIATIVE Scalable Sensor Data  

E-print Network

FUTURE POWER GRID INITIATIVE Scalable Sensor Data Management Middleware OBJECTIVE » Build applications to access real time power grid data » Facilitate the integration of a large number of diverse to the characteristic power grid data and application » Distributed over multiple machines for further scalability

430

Virtual smart grid architecture and control framework  

Microsoft Academic Search

In this paper, we present a cloud based virtual Smart Grid (vSG) architecture and its concept design. This novel architecture extends the pervasive virtualization principle to the wide area smart grid sensory, communication, and control systems, and essentially embeds the Smart Grid (SG) into a cloud environment. We particularly design a systematic virtualization mechanism for SG system in three levels:

Yufeng Xin; Ilia Baldine; Jeff Chase; Tsegereda Beyene; Bill Parkhurst; Aranya Chakrabortty

2011-01-01

431

Cyber Security in Smart Grid Substations  

E-print Network

Cyber Security in Smart Grid Substations Thijs Baars Lucas van den Bemd Michail Theuns Robin van.089 3508 TB Utrecht The Netherlands #12;CYBER SECURITY IN SMART GRID SUBSTATIONS Thijs Baars T for a detailed overview. Besides these results, a Smart Grid Substation (SGS) Security Benchmark is presented

Utrecht, Universiteit

432

Earth resistivity measurement near substation ground grids  

SciTech Connect

Proper substation grounding grid design requires good, accurate soil resistivity measurements. This data is essential to model the substation ground grid to design a safe ground grid with a satisfactory ground grid resistance at minimum cost. For substations with several decades of service, there is some concern that a grid may have deteriorated, been damaged during equipment installation or excavation, or that initial soil resistivity measurements were lost or may not have been correctly performed. Ground grid conductors change the substation surface voltage distribution. Any voltage measurements taken at the complete substation will also vary from the tests made without conductors present. During testing, current was injected in the soil by probes placed near the ground grid. The current tends to follow the ground grid conductors since copper is a far better conductor than the soil it is placed in. Resistance readings near grids will be lower than readings in undisturbed soil. Since computer models were unavailable for many years, analyzing the effect of the grid conductors on soil resistivity measurements was very difficult. As a result, soil resistivity measurements made close to substations were of little use to the engineer unless some means of correcting the measured values could be developed. This paper will present results of soil resistivity measurements near a substation ground grid before and after a ground grid has been installed and describes a means of calculating the undisturbed soil model.

Lodwig, S.G.; Mateja, S.A. [ComEd, Chicago, IL (United States)

1996-11-01

433

GRENADE: A Grid Enabled Desktop Environment  

Microsoft Academic Search

Making grid technology available to a wider community requires moving away from the complex command line tools commonly in use today towards a more transparent and user-friendly interface. We seek to address this challenge by presenting the notion of a Grid Enabled Desktop Environment (GRENADE), seamlessly extending the familiar desktop user-interface paradigm to interactions with grid resources. This paper describes

James Marsh; Steve Pettifer; Daniel Hanlon; Stephen Pickles; Jon Maclaren; Martyn Foster

2004-01-01

434

SAM and the Particle Physics Data Grid  

Microsoft Academic Search

The D0 experiment's data and job management system software, SAM, is an operational prototype of many of the concepts being developed for Grid computing. We explain how the components of SAM map into the Data Grid architecture. We discuss the future use of Grid components to either replace existing components of SAM or to extend its functionality and utility; work

Lauri Loebel-Carpenter; Lee Lueking; Carmenita Moore; Ruth Pordes; Julie Trumbo; Sinisa Veseli; Igor Terekhov; Matthew Vranicar; Stephen White; Victoria White

2001-01-01

435

Injecting Robustness into Autonomic Grid Systems  

Microsoft Academic Search

Autonomic computational grids are self-organizing software sys- tems that pool the computational resources of large public net- works to solve computationally-intensive problems. While auto- nomic grids can scale to networks far larger than centralized grids, they have not seen the same adoption and success in industry due to an incomplete treatment of fault tolerance. In this paper, we pro- pose

Yuriy Brun; George Edwards; Nenad Medvidovic

436

Remote computing using the National Fusion Grid  

Microsoft Academic Search

The National Fusion Collaboratory (http:\\/\\/www.fusiongrid.org) uses grid technology to implement remote computing on the National Fusion Grid. The motivations are to reduce the cost of computing resources, shorten the software deployment cycle, and simplify remote computing for the user community. The National Fusion Collaboratory has successfully demonstrated remote access as a grid service to the TRANSP transport analysis code for

J. R. Burruss; S Flanagan; K Keahey; C Ludescher; D. C McCune; Q Peng; L Randerson; D. P Schissel; M Thompson

2004-01-01

437

March 15, 2005 CMS Data Grid, Open  

E-print Network

Ian Fisk March 15, 2005 CMS Data Grid, Open Science Grid, and Condor-C #12;Ian M. Fisk Fermilab Condor Week March 15, 2005 Formation of the CMS Data Grid The 4 experiments being constructed and status exchange, and execution of requests. 2 #12;Ian M. Fisk Fermilab Condor Week March 15, 2005 CMS

Wisconsin at Madison, University of

438

Campus Grids Condor Nests at Purdue  

E-print Network

#12;· Campus Grids · Condor Nests at Purdue ­ Central Clusters ­ Computing Labs ­ Departmental Condor Easy for IT ­ Dashboard · Virtualization ­ VMGlide Condor Week 2010 #12;·Open Science Grid Campus · Purdue, FermiGrid, GLOW, others all implement in their own way Condor Week 2010 http

Wisconsin at Madison, University of

439

Grid resource management for data mining applications  

Microsoft Academic Search

Emerging data mining applications in science, engineering and other sectors in- creasingly exploit large and distributed data sources as well as computationally intensive algorithms. Adapting such applications to grid computing environments has implications for grid resource brokering. A grid resource broker supporting such applications needs to provide eective and ecient job scheduling, execution and monitoring. Furthermore, to be useable by

Valentin Kravtsov; Thomas Niessen; Assaf Schuster; Werner Dubitzky; Vlado Stankovski

2006-01-01

440

An adaptive grid method for computing time accurate solutions on structured grids  

NASA Technical Reports Server (NTRS)

The solution method consists of three parts: a grid movement scheme; an unsteady Euler equation solver; and a temporal coupling routine that links the dynamic grid to the Euler solver. The grid movement scheme is an algebraic method containing grid controls that generate a smooth grid that resolves the severe solution gradients and the sharp transitions in the solution gradients. The temporal coupling is performed with a grid prediction correction procedure that is simple to implement and provides a grid that does not lag the solution in time. The adaptive solution method is tested by computing the unsteady inviscid solutions for a one dimensional shock tube and a two dimensional shock vortex iteraction.

Bockelie, Michael J.; Smith, Robert E.; Eiseman, Peter R.

1991-01-01

441

ITIL and Grid services at GridKa  

NASA Astrophysics Data System (ADS)

The Steinbuch Centre for Computing (SCC) is a new organizational unit of the Karlsruhe Institute of Technology (KIT). Founded in February 2008 as a merger of the previous Institute for Scientific Computing of Forschungszentrum Karlsruhe and the Computing Centre of the Technical University Karlsruhe, SCC provides a broad spectrum of IT services for 8.000 employees and 18.000 students and carries out research and development in key areas of information technology under the same roof. SCC is also known to host the German WLCG [1] Tier-1 centre GridKa. In order to accompany the merging of the two existing computing centres located at a distance of about 10 km and to provide common first class services for science, SCC has selected the IT service management according to the industrial quasi-standard "IT Infrastructure Library (ITIL)" [3] as a strategic element. The paper discusses the implementation of a few ITIL key components from the perspective of a Scientific Computing Centre using examples of Grid services at GridKa.

Marten, H.; Koenig, T.

2010-04-01

442

Running Bag-of-Tasks Applications on Computational Grids: The MyGrid Approach  

Microsoft Academic Search

We here discuss how to run Bag-of-Tasks applications on computational grids. Bag-of-Tasks applications (those parallel applications whose tasks are independent) are both relevant and amendable for execution on grids. However, few users currently execute their Bag-of-Tasks applications on grids. We investigate the reason for this state of affairs and introduce MyGrid, a system designed to overcome the identified difficulties. MyGrid

Walfredo Cirne; Daniel Paranhos Da Silva; Lauro Costa; Elizeu Santos-neto; Francisco Vilar Brasileiro; Jacques Philippe Sauvé; Fabrício A. B. Silva; Carla O. Barros; Cirano Silveira

2003-01-01

443

Gammadelta T cells promote anterior chamber-associated immune deviation and immune privilege through their production of IL-10.  

PubMed

Anterior chamber-associated immune deviation (ACAID) is a form of peripheral tolerance that is induced by introducing Ags into the anterior chamber (AC) of the eye, and is maintained by Ag-specific regulatory T cells (Tregs). ACAID regulates harmful immune responses that can lead to irreparable injury to innocent bystander cells that are incapable of regeneration. This form of immune privilege in the eye is mediated through Tregs and is a product of complex cellular interactions. These involve F4/80+ ocular APCs, B cells, NKT cells, CD4+CD25+ Tregs, and CD8+ Tregs. gammadelta T cells are crucial for the generation of ACAID and for corneal allograft survival. However, the functions of gammadelta T cells in ACAID are unknown. Several hypotheses were proposed for determining the functions of gammadelta T cells in ACAID. The results indicate that gammadelta T cells do not cause direct suppression of delayed-type hypersensitivity nor do they act as tolerogenic APCs. In contrast, gammadelta T cells were shown to secrete IL-10 and facilitate the generation of ACAID Tregs. Moreover, the contribution of gammadelta T cells ACAID generation could be replaced by adding exogenous recombinant mouse IL-10 to ACAID spleen cell cultures lacking gammadelta T cells. PMID:17142729

Ashour, Hossam M; Niederkorn, Jerry Y

2006-12-15

444

1,3,5-Triazine-based analogues of purine: from isosteres to privileged scaffolds in medicinal chemistry.  

PubMed

Purines can be considered as the most ubiquitous and functional N-heterocyclic compounds in nature. Structural modifications of natural purines, particularly using isosteric ring systems, have been in the focus of many drug discovery programs. Fusion of 1,3,5-triazine ring with pyrrole, pyrazole, imidazole, 1,2,3-triazole or 1,2,4-triazole results in seven bicyclic heterocyclic systems isosteric to purine. Application of the isosterism concept for the development of new compounds with therapeutic potential in areas involving purinergic regulation or purine metabolism led to significant advances in medicinal chemistry of the azolo[1,3,5]triazines. These 1,3,5-triazine-based purine-like scaffolds significantly increase level of molecular diversity and allow covering chemical space in the important areas of medicinal chemistry. Some of these azolo[1,3,5]triazine systems have become privileged scaffolds in the development of inhibitors of various kinases, phosphodiesterase, xanthine oxidase, and thymidine phosphorylase, antagonists of adenosine and corticotropin-releasing hormone receptors, anticancer and antiviral agents. PMID:25105925

Lim, Felicia Phei Lin; Dolzhenko, Anton V

2014-10-01

445

Spacer grid assembly and locking mechanism  

DOEpatents

A spacer grid assembly is disclosed for retaining a plurality of fuel rods in substantially parallel spaced relation, the spacer grids being formed with rhombic openings defining contact means for engaging from one to four fuel rods arranged in each opening, the spacer grids being of symmetric configuration with their rhombic openings being asymmetrically offset to permit inversion and relative rotation of the similar spacer grids for improved support of the fuel rods. An improved locking mechanism includes tie bars having chordal surfaces to facilitate their installation in slotted circular openings of the spacer grids, the tie rods being rotatable into locking engagement with the slotted openings.

Snyder, Jr., Harold J. (Rancho Santa Fe, CA); Veca, Anthony R. (San Diego, CA); Donck, Harry A. (San Diego, CA)

1982-01-01

446

Building the International Lattice Data Grid  

SciTech Connect

We present the International Lattice Data Grid (ILDG), a loosely federated grid-of-grids for sharing data from Lattice Quantum Chromodynamics (LQCD) simulations. The ILDG comprises of metadata, file-format and web-service standards, which can be used to wrap regional data-grid interfaces, allowing seamless access to catalogues and data in a diverse set of collaborating regional grids. We discuss the technological underpinnings of the ILDG, primarily the metadata and the middleware, and offer a critique of its various aspects with the hindsight of the design work and the two years of production.

Mark G. Beckett, Paul Coddington, Bálint Joó, Chris M. Maynard, Dirk Pleiter, Osamu Tatebe, Tomoteru Yoshie

2011-06-01

447

The Last Straw: The Department of Justice's Privilege Waiver Policy and the Death of Adversarial Justice in Criminal Investigations of Corporations  

Microsoft Academic Search

The white-collar criminal defense bar has never been reticent to complain about U.S. Department of Justice (DOJ) policies that threaten its clients or the viability of its practice. But nothing--at least in the author's twenty-plus years of involvement in white-collar issues--has consumed the bar as much as the threats posed to the corporate attorney-client privilege and work-product doctrine. While commentators

Julie R OSullivan

2008-01-01

448

Grid artifact reduction for direct digital radiography detectors based on rotated stationary grids with homomorphic filtering  

SciTech Connect

Purpose: Grid artifacts are caused when using the antiscatter grid in obtaining digital x-ray images. In this paper, research on grid artifact reduction techniques is conducted especially for the direct detectors, which are based on amorphous selenium. Methods: In order to analyze and reduce the grid artifacts, the authors consider a multiplicative grid image model and propose a homomorphic filtering technique. For minimal damage due to filters, which are used to suppress the grid artifacts, rotated grids with respect to the sampling direction are employed, and min-max optimization problems for searching optimal grid frequencies and angles for given sampling frequencies are established. The authors then propose algorithms for the grid artifact reduction based on the band-stop filters as well as low-pass filters. Results: The proposed algorithms are experimentally tested for digital x-ray images, which are obtained from direct detectors with the rotated grids, and are compared with other algorithms. It is shown that the proposed algorithms can successfully reduce the grid artifacts for direct detectors. Conclusions: By employing the homomorphic filtering technique, the authors can considerably suppress the strong grid artifacts with relatively narrow-bandwidth filters compared to the normal filtering case. Using rotated grids also significantly reduces the ringing artifact. Furthermore, for specific grid frequencies and angles, the authors can use simple homomorphic low-pass filters in the spatial domain, and thus alleviate the grid artifacts with very low implementation complexity.

Kim, Dong Sik [Department of Electronics Engineering, Hankuk University of Foreign Studies, Gyeonggi-do 449-791 (Korea, Republic of); Lee, Sanggyun [R and D Center, DRTECH Co., Gyeonggi-do 463-782 (Korea, Republic of)

2013-06-15

449

GridMol: a grid application for molecular modeling and visualization.  

PubMed

In this paper we present GridMol, an extensible tool for building a high performance computational chemistry platform in the grid environment. GridMol provides computational chemists one-stop service for molecular modeling, scientific computing and molecular information visualization. GridMol is not only a visualization and modeling tool but also simplifies control of remote Grid software that can access high performance computing resources. GridMol has been successfully integrated into China National Grid, the most powerful Chinese Grid Computing platform. In Section "Grid computing" of this paper, a computing example is given to show the availability and efficiency of GridMol. GridMol is coded using Java and Java3D for portability and cross-platform compatibility (Windows, Linux, MacOS X and UNIX). GridMol can run not only as a stand-alone application, but also as an applet through web browsers. In this paper, we will present the techniques for molecular visualization, molecular modeling and grid computing. GridMol is available free of charge under the GNU Public License (GPL) from our website: http://www.sccas.cn/~syh/GridMol/index.html. PMID:18231861

Sun, Yanhua; Shen, Bin; Lu, Zhonghua; Jin, Zhong; Chi, Xuebin

2008-02-01

450

Solving Partial Differential Equations on Overlapping Grids  

SciTech Connect

We discuss the solution of partial differential equations (PDEs) on overlapping grids. This is a powerful technique for efficiently solving problems in complex, possibly moving, geometry. An overlapping grid consists of a set of structured grids that overlap and cover the computational domain. By allowing the grids to overlap, grids for complex geometries can be more easily constructed. The overlapping grid approach can also be used to remove coordinate singularities by, for example, covering a sphere with two or more patches. We describe the application of the overlapping grid approach to a variety of different problems. These include the solution of incompressible fluid flows with moving and deforming geometry, the solution of high-speed compressible reactive flow with rigid bodies using adaptive mesh refinement (AMR), and the solution of the time-domain Maxwell's equations of electromagnetism.

Henshaw, W D

2008-09-22

451

Interactive grid generation for fighter aircraft geometries  

NASA Technical Reports Server (NTRS)

An interactive procedure to construct grids about fighter aircraft configurations using a 'state-of-the-art' workstation is described. A multiple-block grid topology is used to minimize grid skewness. Grid points on the surface of a configuration are precomputed and stored on the faces of appropriate blocks. Grid points at intermediate and far field boundary surfaces are computed with analytical functions and stored on appropriate faces. Grid points in the interior of blocks are computed using transfinite interpolation with Lagrangian and exponential blending functions. Interactive software has been written for the IRIS 3030 graphics workstation to control the shape and spacing of grid points on intermediate and far field boundaries, and to control the interior interpolation.

Smith, Robert E.; Everton, Eric L.

1988-01-01

452

Smart Grid Status and Metrics Report Appendices  

SciTech Connect

A smart grid uses digital power control and communication technology to improve the reliability, security, flexibility, and efficiency of the electric system, from large generation through the delivery systems to electricity consumers and a growing number of distributed generation and storage resources. To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. The Smart Grid Status and Metrics Report defines and examines 21 metrics that collectively provide insight into the grid’s capacity to embody these characteristics. This appendix presents papers covering each of the 21 metrics identified in Section 2.1 of the Smart Grid Status and Metrics Report. These metric papers were prepared in advance of the main body of the report and collectively form its informational backbone.

Balducci, Patrick J.; Antonopoulos, Chrissi A.; Clements, Samuel L.; Gorrissen, Willy J.; Kirkham, Harold; Ruiz, Kathleen A.; Smith, David L.; Weimar, Mark R.; Gardner, Chris; Varney, Jeff

2014-07-01

453

Unique Sink Orientations of Grids  

Microsoft Academic Search

Abstract We introduce unique sink orientations of grids as digraph models for many well-studied problems, including linear programming over products of simplices, generalized linear complementarity problems over P-matrices (PGLCP), and simple stochastic games. We investigate the combinatorial structure of such orientations and develop randomized algorithms for nding,the sink. We show that the orientations arising from PGLCP satisfy the Holt-Klee condition

Bernd Gärtner; Walter D. Morris Jr.; Leo Rüst

2008-01-01

454

Unique Sink Orientations of Grids  

Microsoft Academic Search

We introduce unique sink orientations of grids as digraph models for many well-studied problems, including linear programming over products of simplices, generalized linear complementarity problems over P-matrices (PGLCP), and simple stochastic games. We investigate the combinatorial structure of such orientations and develop randomized algorithms for nding the sink. We show that the orientations arising from PGLCP satisfy the Holt-Klee condition

Bernd Gärtner; Walter D. Morris; Leo Rüst

2005-01-01

455

Certainty grids for mobile robots  

NASA Technical Reports Server (NTRS)

A numerical representation of uncertain and incomplete sensor knowledge called Certainty Grids has been used successfully in several mobile robot control programs, and has proven itself to be a powerful and efficient unifying solution for sensor fusion, motion planning, landmark identification, and many other central problems. Researchers propose to build a software framework running on processors onboard the new Uranus mobile robot that will maintain a probabilistic, geometric map of the robot's surroundings as it moves. The certainty grid representation will allow this map to be incrementally updated in a uniform way from various sources including sonar, stereo vision, proximity and contact sensors. The approach can correctly model the fuzziness of each reading, while at the same time combining multiple measurements to produce sharper map features, and it can deal correctly with uncertainties in the robot's motion. The map will be used by planning programs to choose clear paths, identify locations (by correlating maps), identify well-known and insufficiently sensed terrain, and perhaps identify objects by shape. The certainty grid representation can be extended in the same dimension and used to detect and track moving objects.

Moravec, H. P.

1987-01-01

456

The CMS integration grid testbed  

SciTech Connect

The CMS Integration Grid Testbed (IGT) comprises USCMS Tier-1 and Tier-2 hardware at the following sites: the California Institute of Technology, Fermi National Accelerator Laboratory, the University of California at San Diego, and the University of Florida at Gainesville. The IGT runs jobs using the Globus Toolkit with a DAGMan and Condor-G front end. The virtual organization (VO) is managed using VO management scripts from the European Data Grid (EDG). Gridwide monitoring is accomplished using local tools such as Ganglia interfaced into the Globus Metadata Directory Service (MDS) and the agent based Mona Lisa. Domain specific software is packaged and installed using the Distribution After Release (DAR) tool of CMS, while middleware under the auspices of the Virtual Data Toolkit (VDT) is distributed using Pacman. During a continuous two month span in Fall of 2002, over 1 million official CMS GEANT based Monte Carlo events were generated and returned to CERN for analysis while being demonstrated at SC2002. In this paper, we describe the process that led to one of the world's first continuously available, functioning grids.

Graham, Gregory E.

2004-08-26

457

Globally Gridded Satellite (GridSat) Observations for Climate Studies  

NASA Technical Reports Server (NTRS)

Geostationary satellites have provided routine, high temporal resolution Earth observations since the 1970s. Despite the long period of record, use of these data in climate studies has been limited for numerous reasons, among them: there is no central archive of geostationary data for all international satellites, full temporal and spatial resolution data are voluminous, and diverse calibration and navigation formats encumber the uniform processing needed for multi-satellite climate studies. The International Satellite Cloud Climatology Project set the stage for overcoming these issues by archiving a subset of the full resolution geostationary data at approx.10 km resolution at 3 hourly intervals since 1983. Recent efforts at NOAA s National Climatic Data Center to provide convenient access to these data include remapping the data to a standard map projection, recalibrating the data to optimize temporal homogeneity, extending the record of observations back to 1980, and reformatting the data for broad public distribution. The Gridded Satellite (GridSat) dataset includes observations from the visible, infrared window, and infrared water vapor channels. Data are stored in the netCDF format using standards that permit a wide variety of tools and libraries to quickly and easily process the data. A novel data layering approach, together with appropriate satellite and file metadata, allows users to access GridSat data at varying levels of complexity based on their needs. The result is a climate data record already in use by the meteorological community. Examples include reanalysis of tropical cyclones, studies of global precipitation, and detection and tracking of the intertropical convergence zone.

Knapp, Kenneth R.; Ansari, Steve; Bain, Caroline L.; Bourassa, Mark A.; Dickinson, Michael J.; Funk, Chris; Helms, Chip N.; Hennon, Christopher C.; Holmes, Christopher D.; Huffman, George J.; Kossin, James P.; Lee, Hai-Tien; Loew, Alexander; Magnusdottir, Gudrun

2012-01-01

458

Grids for Dummies: Featuring Earth Science Data Mining Application  

NASA Technical Reports Server (NTRS)

This viewgraph presentation discusses the concept and advantages of linking computers together into data grids, an emerging technology for managing information across institutions, and potential users of data grids. The logistics of access to a grid, including the use of the World Wide Web to access grids, and security concerns are also discussed. The potential usefulness of data grids to the earth science community is also discussed, as well as the Global Grid Forum, and other efforts to establish standards for data grids.

Hinke, Thomas H.

2002-01-01

459

ARPA-E: Advancing the Electric Grid  

SciTech Connect

The electric grid was designed with the assumption that all energy generation sources would be relatively controllable, and grid operators would always be able to predict when and where those sources would be located. With the addition of renewable energy sources like wind and solar, which can be installed faster than traditional generation technologies, this is no longer the case. Furthermore, the fact that renewable energy sources are imperfectly predictable means that the grid has to adapt in real-time to changing patterns of power flow. We need a dynamic grid that is far more flexible. This video highlights three ARPA-E-funded approaches to improving the grid's flexibility: topology control software from Boston University that optimizes power flow, gas tube switches from General Electric that provide efficient power conversion, and flow batteries from Harvard University that offer grid-scale energy storage.

Lemmon, John; Ruiz, Pablo; Sommerer, Tim; Aziz, Michael

2014-02-24

460

ELEC-1125 - Electric Line & Smart Grid Design  

NSDL National Science Digital Library

This two credit course offered at Macomb Community College explains how sensors, communications technologies, computational ability, control, and feedback mechanisms can be effectively combined to create a continually adjusting smart grid system. It provides an understanding of both Intelligrid architecture and EnergyPort, as well as how to integrate intelligent systems to achieve the goals of reliability, cost containment, energy efficiency in power production and delivery, and end-use energy efficiency. Included educational materials for this course are presentations, reports, and a syllabus. Homework assignments and exams are not included. The course outline is as follows: review of right triangles, wooden poles, pole loading, what is the Smart Grid?, electric energy efficiency in power production and delivery, electric end use efficiency, using a Smart Grid to evolve the perfect power system, intelliGrid architecture for the Smart Grid, the dynamic energy system concept, and Smart Grid EnergyPort.

461

Insightful Workflow For Grid Computing  

SciTech Connect

We developed a workflow adaptation and scheduling system for Grid workflow. The system currently interfaces with and uses the Karajan workflow system. We developed machine learning agents that provide the planner/scheduler with information needed to make decisions about when and how to replan. The Kubrick restructures workflow at runtime, making it unique among workflow scheduling systems. The existing Kubrick system provides a platform on which to integrate additional quality of service constraints and in which to explore the use of an ensemble of scheduling and planning algorithms. This will be the principle thrust of our Phase II work.

Dr. Charles Earl

2008-10-09

462

FINAL REPORT - CENTER FOR GRID MODERNIZATION  

SciTech Connect

The objective of the CGM was to develop high-priority grid modernization technologies in advanced sensors, communications, controls and smart systems to enable use of real-time or near real-time information for monitoring, analyzing and managing distribution and transmission grid conditions. The key strategic approach to carry out individual CGM research and development (R&D) projects was through partnerships, primarily with the GridApp™ Consortium utility members.

Markiewicz, Daniel R

2008-06-30

463

GridCertLib: Use Shibboleth to Access the Grid from Web Portals  

E-print Network

This paper describes the design and implementation of GridCertLib, a Java library leveraging a Shibboleth-based authentication infrastructure and the SLCS online certificate signing service, to provide short-lived X.509 certificates and Grid proxies. The main use case envisioned for GridCertLib, is to provide seamless and secure access to Grid/X.509 certificates and proxies in web portals: when a user logs in to the portal using SWITCHaai Shibboleth authentication, GridCertLib can automatically obtain a Grid/X.509 certificate from the SLCS service and generate a VOMS proxy from it. We give an overview of the architecture of GridCertLib and briefly describe its programming model. Application to common deployment scenarios are outlined, and we report on our practical experience integrating GridCertLib into the a portal for Bioinformatics applications, based on the popular P-GRADE software.

Kunszt, Peter Z; Murri, Riccardo; Tschopp, Valery

2011-01-01

464

Hyperbolic Prismatic Grid Generation and Solution of Euler Equations on Prismatic Grids  

NASA Technical Reports Server (NTRS)

A hyperbolic grid generation method is used to generate prismatic grids and an approach using prismatic grids to solve the Euler equations is presented. The theory of the stability and feasibility of the hyperbolic grid generation method is presented. The hyperbolic grid generation method of Steger et al for structured grids is applied to a three dimensional triangularized surface definition to generate a grid that is unstructured on each successive layer. The grid, however, retains structure in the body-normal direction and has a computational cell shaped like a triangular prism. In order to take advantage of the structure in the normal direction, a finite-volume scheme that treats the unknowns along the normal direction implicitly is introduced and the flow over a sphere is simulated.

Pandya, S. A.; Chattot, JJ; Hafez, M. M.; Kutler, Paul (Technical Monitor)

1994-01-01

465

Grid Transformation Workshop Results Grid Transformation Workshop Results 2 April 2012  

E-print Network

, component state estimation approach, substation based protec- tion and pattern recognition based approach to fully achieve Grid 3.0. Seamless Geospatial Power System Model ­ The explosion of data from "Smart Grid

466

Structured background grids for generation of unstructured grids by advancing front method  

NASA Technical Reports Server (NTRS)

A new method of background grid construction is introduced for generation of unstructured tetrahedral grids using the advancing-front technique. Unlike the conventional triangular/tetrahedral background grids which are difficult to construct and usually inadequate in performance, the new method exploits the simplicity of uniform Cartesian meshes and provides grids of better quality. The approach is analogous to solving a steady-state heat conduction problem with discrete heat sources. The spacing parameters of grid points are distributed over the nodes of a Cartesian background grid by interpolating from a few prescribed sources and solving a Poisson equation. To increase the control over the grid point distribution, a directional clustering approach is used. The new method is convenient to use and provides better grid quality and flexibility. Sample results are presented to demonstrate the power of the method.

Pirzadeh, Shahyar

1991-01-01

467

The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond  

E-print Network

The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond BURLINGTON SHERATON HOTEL & CONFERENCE CENTER MAY Grasso, Vice President for Research, University of Vermont · Daniel Mark Fogel

Hayden, Nancy J.

468

How to build a grid cell  

PubMed Central

Neurons in the medial entorhinal cortex fire action potentials at regular spatial intervals, creating a striking grid-like pattern of spike rates spanning the whole environment of a navigating animal. This remarkable spatial code may represent a neural map for path integration. Recent advances using patch-clamp recordings from entorhinal cortex neurons in vitro and in vivo have revealed how the microcircuitry in the medial entorhinal cortex may contribute to grid cell firing patterns, and how grid cells may transform synaptic inputs into spike output during firing field crossings. These new findings provide key insights into the ingredients necessary to build a grid cell. PMID:24366132

Schmidt-Hieber, Christoph; Häusser, Michael

2014-01-01

469

The Virtual Observatory and Grid in Spain  

E-print Network

The Virtual Observatory (VO) is nearing maturity, and in Spain the Spanish VO (SVO) exists since June 2004. There have also been numerous attempts at providing more or less encompassing grid initiatives at the national level, and finally Spain has an official National Grid Initiative (NGI). In this article we will show the VO and Grid development status of nationally funded initiatives in Spain, and we will hint at potential joint VO-Grid use-cases to be developed in Spain in the near future.

J. D. Santander-Vela

2008-07-08

470

Electron Backstreaming Mitigation via a Magnetic Grid  

NASA Technical Reports Server (NTRS)

Electron backstreaming due to accelerator grid hole enlargement has been identified as a failure mechanism that will limit ion thruster service lifetime. Over extended periods of time as accelerator grid apertures enlarge due to erosion, ion thrusters are required to operate at increasingly higher accelerator grid voltages in order to prevent electron backstreaming. These higher voltages give rise to higher grid erosion rates, which in turn accelerates aperture enlargement. Presented here is an approach to mitigate the backflow of electrons into the engine by using a transverse magnetic field.

Foster, John F.; Roman, Robert F.; Soulas, George C.; Patterson, Michael J.

2002-01-01

471

Effects of grids in drift tubes  

SciTech Connect

In 2011, we upgraded a 201 MHz buncher in the proton injector for the alternating gradient synchrotron (AGS) - relativistic heavy ion collider (RHIC) complex. In the buncher we installed four grids made of tungsten to improve the transit time factor. The grid installed drift tubes have 32 mm of inner diameter and the each grid consists of four quadrants. The quadrants were cut out precisely from 1mm thick tungsten plates by a computerized numerically controlled (CNC) wire cutting electrical discharge machining (EDM). The 3D electric field of the grid was simulated.

Okamura M.; Yamauchi, H.

2012-05-20

472

Ion mobility spectrometer with virtual aperture grid  

DOEpatents

An ion mobility spectrometer does not require a physical aperture grid to prevent premature ion detector response. The last electrodes adjacent to the ion collector (typically the last four or five) have an electrode pitch that is less than the width of the ion swarm and each of the adjacent electrodes is connected to a source of free charge, thereby providing a virtual aperture grid at the end of the drift region that shields the ion collector from the mirror current of the approaching ion swarm. The virtual aperture grid is less complex in assembly and function and is less sensitive to vibrations than the physical aperture grid.

Pfeifer, Kent B. (Los Lunas, NM); Rumpf, Arthur N. (Albuquerque, NM)

2010-11-23

473

Security Aspects of Smart Grid Communication.  

E-print Network

??As the grid becomes highly interconnected, power protection, control, and monitoring in transmission and distribution substations are increasingly relying on digital controls and digital communication.… (more)

Weerathunga, Pubudu E

2012-01-01

474

The Grid-idea and its evolution.  

SciTech Connect

In this paper we review the essence of the Grid-Idea. Specifically, we explore the changing definition of the Grid and follow its evolution over the past decade. This evolution is motivated by the gradual expansion of management issues that must be addressed to make production Grids a reality and to meet user requirements for increased functionality. Additionally, we focus on the evolutionary path of the Globus Toolkit taken to address the increasing needs of the community. We also discuss the evolutionary inclusion of commodity technologies as illustrated by the Java Commodity Grid Project.

von Laszewski, G.; Mathematics and Computer Science

2005-01-01

475

Grid Architecture Release 2.3  

E-print Network

.............................................................................. 3.4 4.0 Starting Point: Selected Architectural Representations of the Existing Grid .............................. 4.1 4.1.1 Industry Structures

476

Workshop on Grid Generation and Related Areas  

NASA Technical Reports Server (NTRS)

A collection of papers given at the Workshop on Grid Generation and Related Areas is presented. The purpose of this workshop was to assemble engineers and scientists who are currently working on grid generation for computational fluid dynamics (CFD), surface modeling, and related areas. The objectives were to provide an informal forum on grid generation and related topics, to assess user experience, to identify needs, and to help promote synergy among engineers and scientists working in this area. The workshop consisted of four sessions representative of grid generation and surface modeling research and application within NASA LeRC. Each session contained presentations and an open discussion period.

1992-01-01

477

GridCertLib: a Single Sign-on Solution for Grid Web Applications and Portals  

Microsoft Academic Search

This paper describes the design and implementation of GridCertLib, a Java library leveraging a Shibboleth-based authentication infrastructure and the SLCS online certificate signing service, to provide short-lived X.509 certificates and Grid proxies. The main use case envisioned for GridCertLib, is to provide seamless and secure access to Grid\\/X.509 certificates and proxies in web applications and portals: when a user logs

Riccardo Murri; Peter Z. Kunszt; Sergio Maffioletti; Valery Tschopp

2011-01-01

478

Overview of GridRPC: A Remote Procedure Call API for Grid Computing  

Microsoft Academic Search

This paper discusses preliminary work on standardizing and implementing a remote procedure call (RPC) mechanism for grid computing.\\u000a The GridRPC API is designed to address the lack of a standardized, portable, and simple programming interface. Our initial\\u000a work on GridRPC shows that client access to existing grid computing systems such as NetSolve and Ninf can be unified via a\\u000a common

Keith Seymour; Hidemoto Nakada; Satoshi Matsuoka; Jack Dongarra; Craig A. Lee; Henri Casanova

2002-01-01

479

Initializing a National Grid Infrastructure ? Lessons Learned from the Swiss National Grid Association Seed Project  

Microsoft Academic Search

In addition to multi-national Grid infrastructures, several countries operate their own national Grid infrastructures to support science and industry within national borders. These infrastructures have the benefit of better satisfying the needs of local, regional and national user communities. Although Switzerland has strong research groups in several fields of distributed computing, only recently a national Grid effort was kick-started to

Nabil Abdennadher; Peter Engel; Derek Feichtinger; Dean Flanders; Placi Flury; Sigve Haug; Pascal Jermini; Sergio Maffioletti; Cesare Pautasso; Heinz Stockinger; Wibke Sudholt; Michela Thiémard; Nadya Williams; Christoph Witzig

2008-01-01

480

Ontology-Based Resource Matching in the Grid - The Grid Meets the Semantic Web  

Microsoft Academic Search

The Grid is an emerging technology for enabling resource sharing and coordinated problem solving in dynamic multi-institutional virtual organizations. In the Grid environment, shared resources and users typically span different orga- nizations. The resource matching problem in the Grid involves assigning resources to tasks in order to satisfy task requirements and resource policies. These require- ments and policies are often

Hongsuda Tangmunarunkit; Stefan Decker; Carl Kesselman

2003-01-01

481

EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems  

E-print Network

EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems Program Office, Associate Program Manager: Dean Prochaska, Smart Grid and Cyber- Physical Systems Program Office, Strategic Goal: Smart Manufacturing and Cyber-Physical Systems Date Prepared: May 31, 2013

482

Smart Grids: Fact or Fiction? A Discussion of Smart Grids in New Zealand  

E-print Network

May 2013 1 Smart Grids: Fact or Fiction? A Discussion of Smart Grids in New Zealand Dr Allan Miller. Introduction The term `smart grid' is used extensively today, even though there are diverse opinions on what the `smart' actions the technology could enable. All power networks include sensing and control technology

Hickman, Mark

483

Smart Grids: Sectores y actividades clave | 1 Smart Grids: Sectores y actividades clave  

E-print Network

Smart Grids: Sectores y actividades clave | 1 Smart Grids: Sectores y actividades clave INFORME\\Baldiri Reixac 4, torre I, planta 7, 08028, Barcelona Tel. 34 - 93 403 37 66 DOCUMENTOFUNSEAM 014a-2013 #12;Smart para la Sostenibilidad Energética y Ambiental, FUNSEAM. #12;Smart Grids: Sectores y actividades clave

Politècnica de Catalunya, Universitat

484

Multi-purpose grid-tied inverter with smart grid capabilities  

NASA Astrophysics Data System (ADS)

Distributed energy storages play an important role in increasing the reliability and efficiency of the grid through means of peak load shaving, grid voltage support, and grid frequency support. It is important to have distributed energy storages that can utilize the functionalities of the modern smart grid to operate more effectively. The grid-tied inverter is one of the major components in a distributed energy storage that controls the power transfer between the grid and an energy storage device. In this research, a grid-tied inverter that can be used in distributed energy storage applications was designed, developed, and tested. This grid-tied inverter was designed with the capability to control both reactive and active power flow in either direction. The grid-tied inverter is equipped with communication capabilities so it can be remotely controlled by commands sent through a smart grid network. For demonstrative purposes, a user interface was developed to control and monitor the operation of the grid-tied inverter. Finally the operation of the grid-tied inverter was evaluated in accordance to IEEE 1547, the Standard for Interconnecting Distributed Resources with Electric Power Systems.

Liyanagedera, Chamika Mihiranga

485

GRID Computing: Infrastructure, Development and Usage in Bulgaria  

NASA Astrophysics Data System (ADS)

What's GRID? What is the structure and how to access to GRID resources? Here we try to answer to these questions. We also discuss the development of GRID infrastructure in Bulgaria and the main steps to become a GRID user. A simple example of submitting a job to the GRID is shown.

Dechev, M.; Petrov, G.; Atanassov, E.

2012-01-01

486

Perspective: A method for uniform reporting of grid refinement studies  

Microsoft Academic Search

This paper proposes the use of a Grid Convergence Index (GCI) for the uniform reporting of grid refinement studies in Computational Fluid Dynamics. The method provides an objective asymptotic approach to quantification of uncertainty of grid convergence. The basic idea is to approximately relate the results from any grid refinement test to the expected results from a grid doubling using

P. J. Roache

1994-01-01

487

Parallel Grid Manipulations in Earth Science Calculations  

NASA Technical Reports Server (NTRS)

The National Aeronautics and Space Administration (NASA) Data Assimilation Office (DAO) at the Goddard Space Flight Center is moving its data assimilation system to massively parallel computing platforms. This parallel implementation of GEOS DAS will be used in the DAO's normal activities, which include reanalysis of data, and operational support for flight missions. Key components of GEOS DAS, including the gridpoint-based general circulation model and a data analysis system, are currently being parallelized. The parallelization of GEOS DAS is also one of the HPCC Grand Challenge Projects. The GEOS-DAS software employs several distinct grids. Some examples are: an observation grid- an unstructured grid of points at which observed or measured physical quantities from instruments or satellites are associated- a highly-structured latitude-longitude grid of points spanning the earth at given latitude-longitude coordinates at which prognostic quantities are determined, and a computational lat-lon grid in which the pole has been moved to a different location to avoid computational instabilities. Each of these grids has a different structure and number of constituent points. In spite of that, there are numerous interactions between the grids, e.g., values on one grid must be interpolated to another, or, in other cases, grids need to be redistributed on the underlying parallel platform. The DAO has designed a parallel integrated library for grid manipulations (PILGRIM) to support the needed grid interactions with maximum efficiency. It offers a flexible interface to generate new grids, define transformations between grids and apply them. Basic communication is currently MPI, however the interfaces defined here could conceivably be implemented with other message-passing libraries, e.g., Cray SHMEM, or with shared-memory constructs. The library is written in Fortran 90. First performance results indicate that even difficult problems, such as above-mentioned pole rotation- a sparse interpolation with little data locality between the physical lat-lon grid and a pole rotated computational grid- can be solved efficiently and at the GFlop/s rates needed to solve tomorrow's high resolution earth science models. In the subsequent presentation we will discuss the design and implementation of PILGRIM as well as a number of the problems it is required to solve. Some conclusions will be drawn about the potential performance of the overall earth science models on the supercomputer platforms foreseen for these problems.

Sawyer, W.; Lucchesi, R.; daSilva, A.; Takacs, L. L.

1999-01-01

488

Modeling and Grid Generation of Iced Airfoils  

NASA Technical Reports Server (NTRS)

SmaggIce Version 2.0 is a software toolkit for geometric modeling and grid generation for two-dimensional, singleand multi-element, clean and iced airfoils. A previous version of SmaggIce was described in Preparing and Analyzing Iced Airfoils, NASA Tech Briefs, Vol. 28, No. 8 (August 2004), page 32. To recapitulate: Ice shapes make it difficult to generate quality grids around airfoils, yet these grids are essential for predicting ice-induced complex flow. This software efficiently creates high-quality structured grids with tools that are uniquely tailored for various ice shapes. SmaggIce Version 2.0 significantly enhances the previous version primarily by adding the capability to generate grids for multi-element airfoils. This version of the software is an important step in streamlining the aeronautical analysis of ice airfoils using computational fluid dynamics (CFD) tools. The user may prepare the ice shape, define the flow domain, decompose it into blocks, generate grids, modify/divide/merge blocks, and control grid density and smoothness. All these steps may be performed efficiently even for the difficult glaze and rime ice shapes. Providing the means to generate highly controlled grids near rough ice, the software includes the creation of a wrap-around block (called the "viscous sublayer block"), which is a thin, C-type block around the wake line and iced airfoil. For multi-element airfoils, the software makes use of grids that wrap around and fill in the areas between the viscous sub-layer blocks for all elements that make up the airfoil. A scripting feature records the history of interactive steps, which can be edited and replayed later to produce other grids. Using this version of SmaggIce, ice shape handling and grid generation can become a practical engineering process, rather than a laborious research effort.

Vickerman, Mary B.; Baez, Marivell; Braun, Donald C.; Hackenberg, Anthony W.; Pennline, James A.; Schilling, Herbert W.

2007-01-01

489

The Privileges of Rank  

PubMed Central

This article examines the effects of peacetime cold war military service on the life course according to four potentially overlapping theories that state that military service (1) was a disruption, (2) was a positive turning point, (3) allowed veterans to accumulate advantage, and (4) was an agent of social reproduction. The article argues that the extent to which the effect of military service on veterans' lives corresponds with one or another of the preceding theories depends on historical shifts in three dimensions: conscription, conflict, and benefits. Military service during the peacetime draft era of the late 1950s had a neutral effect on the socioeconomic attainment of enlisted veterans. However, it had a positive effect on veterans who served as officers, which partly stemmed from status reproduction and selection. Yet net of pre-service and educational differences by rank, officers in this peacetime draft era were still able to accumulate advantage. PMID:20842210

MacLean, Alair

2010-01-01

490

White paper of NIST and SG-CG on standardization of Smart Grids White paper on standardization of Smart Grids  

E-print Network

White paper of NIST and SG-CG on standardization of Smart Grids White paper on standardization of Smart Grids published by NIST & Smart Grid Co-ordination Group 1 #12;White paper of NIST and SG-CG on standardization of Smart Grids INTRODUCTION Europe and the US have identified Smart Grids as a major means

491

GENETK ALGORTMALARA DAYALILETM MERKEZ ? TOPRAKLAMA AI TASARIMINDA A ? ?NDÜKTANSI GRID INDUCTANCE IN SUBSTATION GROUNDING GRID DESIGN BASED ON GENETIC ALGORITHMS  

Microsoft Academic Search

In substation grounding design, grid inductance needs taking into account, too. Because, grid inductance controls impulse impedance. So, the inductance of grounding grid has a vital importance on determining the behaviour of lightning currents. In this study, uniform soil model calculations are used. In the design of optimum grounding grid, the effect of grid inductance is considered. Genetic Algorithms method

492

Designing a Resource Broker for Heterogeneous Grids  

Microsoft Academic Search

Grids provide uniform access to aggregations of heterogeneous resources and services such as computers, networks and storage owned by multiple organizations. However, such a dynamic environment poses many challenges for application composition and deployment. In this paper, we present the design of the Gridbus Grid resource broker that allows users to create applications and specify different objectives through different interfaces

Srikumar Venugopal; Krishna Nadiminti; Hussein Gibbins; Rajkumar Buyya

2007-01-01

493

FUTURE POWER GRID INITIATIVE Next Generation Network  

E-print Network

FUTURE POWER GRID INITIATIVE Next Generation Network Simulations for Power System Applications resources. To operate the future power grids these will need to take into account » the integration of high communications directly into a power domain solver. Simulating a large scale power and communications network

494

Identity Management in a Mobile Grid Environment  

Microsoft Academic Search

The creation of a secure architecture for a Mobile Grid environment is presented in this paper using conceptual security domains and PKI infrastructure within the context of the Akogrimo EU project. Identity stems from the network domain for mobile services and interacts with the core Grid infrastructure specific services managing the Mobile Dynamic Virtual Organisations (MDVO). A model is presented

T Kirkham; D Lutz; J Movilla; P Mandic; C Morariu

495

The USNO SIM Grid Star Selection Program  

Microsoft Academic Search

The United States Naval Observatory (USNO) is in the process of preparing an input catalog of SIM grid stars by utilizing existing databases, observing capabilities, and instrumental development. The SIM grid should be astrometrically stable at the 4 mu as level over the five year life of the program, therefore, double and multiple stars must be avoided. Stars in the

B. D. Mason; T. E. Corbin; A. R. Hajian; C. A. Hummel; T. J. Rafferty; S. E. Urban; N. Zacharias

1999-01-01

496

Ondemand Grid Storage using Scavenging Sudharshan Vazhkudai  

E-print Network

On­demand Grid Storage using Scavenging Sudharshan Vazhkudai Computer Science and Mathematics scavenging; providing availability through aggressive replication; revering user autonomy and his authority, Scavenging. 1. Introduction Grids are often quoted to have grown out of the traditional supercomputing arena

Vazhkudai, Sudharshan

497

Cyber security challenges in Smart Grids  

Microsoft Academic Search

The introduction of telecommunication in the energy grid, leading the way towards Smart Grids, challenges the way safe operations have traditionally been assured in the energy sector. New cyber security challenges emerge, especially related to privacy, connectivity and security management, and these need to be properly addressed. Existing cyber security technology and good practice mainly come from the traditional telecommunication

Maria B. Line; Inger Anne Tondel; Martin G. Jaatun

2011-01-01

498

Simulation of Grid-Fin Control Surfaces  

NASA Technical Reports Server (NTRS)

Conference poster using previously disclosed techniques and methods (see ARC 16210 & 16212). We present simulations of grid-fin control surfaces to demonstrate geometric complexity and numerical robustness. These results have relevance to high-performance computing and performance of grid-fin-based control systems.

Aftosmis, Michael J.

2011-01-01

499

Assessing Interpersonal Perceptions Using the Interpersonal Grid  

ERIC Educational Resources Information Center

Three studies were conducted using the interpersonal grid, a method for assessing perceptions of agentic and communal behavior based on the interpersonal circumplex. The 1st examined consistency across perceivers and convergence between perceiver and the perceived person. The 2nd examined whether responses to the interpersonal grid were sensitive…

Moskowitz, D. S.; Zuroff, David C.

2005-01-01

500

Scale (or Grid) Drawings and Dilations  

NSDL National Science Digital Library

This "simple activity to reinforce the concept of dilation is that of the scale (or grid) drawing" has students produce scale drawings of a given picture using grid paper to a scale of 2 and a scale of 1/2. The directions for the activity are given here as well as clear instructions for students.

2010-08-03